8 Best Vitamins and Supplements for Dry Skin
Depending on the cause of your dry skin, different treatment methods, including medicated ointments and moisturizers, may be used to increase skin hydration.
Additionally, lifestyle modifications, such as drinking more water and taking certain supplements, may improve skin dryness.
Here are 8 vitamins and supplements for dry skin.
1. Vitamin D
Vitamin D is a fat-soluble vitamin that's critical for many aspects of health, including the health of your skin.
Keratinocytes are skin cells that make up the majority of the outer layer of your skin, known as the epidermis.
What's more, research has indicated a correlation between vitamin D and skin moisture.
A study in 83 women found that those who had low vitamin D levels had lower average skin moisture than participants who had normal vitamin D levels, and that as blood levels of vitamin D increased, skin moisture content increased as well.
Another small 12-week study in 50 women observed that daily treatment with a nutritional supplement containing 600 IU of vitamin D led to significant improvements in skin hydration.
However, the supplement contained a combination of nutrients, so it's unclear whether treatment with vitamin D alone would have resulted in the same positive outcome.
A large percentage of the population is deficient in vitamin D, and given that the nutrient is essential for skin hydration, supplementing with it may help combat dry skin.
Vitamin D supplements are widely available in stores and online.
Be sure to discuss their use with your healthcare provider first and look for products that have been third-party tested to ensure the highest quality.
Research shows that low levels of vitamin D may increase the chances of dry skin. Therefore, supplementing with this nutrient may help increase skin hydration.
Collagen is the most abundant protein in your body and accounts for 75% of your skin's dry weight.
Some research has shown that taking collagen-based supplements may have a range of benefits for your skin, including decreasing wrinkle depth and increasing skin hydration.
A study in 69 women found that participants who consumed 2.5–5 grams of collagen per day for 8 weeks had significant improvements in skin elasticity and also experienced increased skin hydration, compared with a placebo group.
Another 12-week study in 72 women noted that taking a supplement that contained 2.5 grams of collagen peptides along with a blend of other ingredients like vitamin C and zinc significantly improved skin hydration and roughness, compared with a placebo group.
However, the supplement contained other nutrients, so it's unknown whether collagen alone would have had the same effects.
Plus, the study was funded by the supplement manufacturer which may have affected the study results.
If you want to try a collagen supplement to help with your dry skin, speak with your healthcare provider before purchasing a third-party certified product locally or online.
A good amount of evidence supports the use of collagen supplements for increasing skin hydration and treating dry skin.
3. Vitamin C
In fact, the skin contains very high levels of vitamin C, with some research finding a concentration of up to 64 mg of vitamin C per 100 grams of the epidermal skin layer.
Unsurprisingly, studies have shown that increasing dietary vitamin C through vitamin C supplements may improve many factors of skin health, including skin hydration.
Plus, some studies have shown that when used in combination with other nutrients, vitamin C may help enhance skin moisture.
For example, a 6-month study in 47 men demonstrated that taking a supplement that contained 54 mg of vitamin C, as well as marine protein and a combination of other nutrients, significantly improved skin hydration, compared with a placebo group.
Other studies in women have shown similar results.
A study in 152 women found that participants who took a supplement that contained 54 mg of vitamin C, as well as zinc and marine protein, had significantly reduced skin roughness, compared with a placebo group.
However, in most of the available research on vitamin C's effect on dry skin, vitamin C is combined with other nutrients, making it impossible to tell whether the nutrient would have the same effect if it was used on its own.
Plus, many of the studies were sponsored by the pharmaceutical companies that manufactured the product being evaluated, which may have affected study results.
Regardless, based on the most current research, supplementing with vitamin C may improve overall skin health and help combat dry skin.
As with any new supplement, you should speak with a healthcare professional before adding a vitamin C supplement to your diet. These products are widely available in stores and online.
Vitamin C is an integral nutrient for skin health. Consuming supplemental vitamin C may improve dry skin, according to some studies. However, more research on its effects on dry skin is needed.
4. Fish Oil
Fish oil is well known for its skin-health-promoting properties.
It contains docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), two essential fatty acids that have powerful anti-inflammatory and healing properties and have been shown to benefit the skin in many ways.
Dietary supplements with fish oil may help boost skin hydration and improve the fatty acid barrier of the skin, which helps maintain hydration.
A 90-day study in rats with acetone-induced dry skin found that high-dose oral fish oil supplements significantly increased skin hydration, reduced water loss, and resolved dryness-related skin itching, compared with rats that didn't receive the fish oil.
In fact, the study noted that the fish oil group had a 30% increase in skin hydration after 60 days of treatment.
Additionally, research indicates that daily treatment with doses of fish oil ranging from 1–14 grams of EPA and 0–9 grams DHA for 6 weeks to 6 months improved symptoms of psoriasis — a chronic, inflammatory skin disease — including scaling or dry, cracked skin.
Fish oil has also been shown to decrease skin inflammation and protect against sun damage, making it an all around skin-friendly supplement.
There are many great, third-party-certified fish oil products available in stores and online. Speak with your healthcare provider first to determine the best choice and dosage for your needs.
Fish oil may help improve skin hydration and decrease moisture loss. Plus, it has been shown to improve dry, scaling skin in those with psoriasis.
5–8. Other Supplements for Treating Dry Skin
In addition to the nutrients listed above, studies have shown that supplementing with several other compounds may be an effective way to improve skin moisture.
- Probiotics. A study found that supplementing both mice and humans with Lactobacillus plantarum bacteria improved skin barrier function and skin hydration after 8 weeks. However, more research is needed.
- Hyaluronic acid. Hyaluronic acid is often used topically to improve skin hydration, but recent research shows that ingesting this compound in combination with other nutrients may significantly increase skin hydration.
- Aloe vera. A study in 64 women found that supplementing with fatty acids derived from aloe vera for 12 weeks significantly improved skin moisture and skin elasticity, compared with a placebo.
- Ceramides. Ceramides are fat molecules that are important components of healthy skin. Some research has shown that supplementing with ceramides may increase skin hydration, which may help treat dry skin.
Some research suggests that the supplements listed above may help enhance skin moisture and treat dry skin.
However, more research is needed before these compounds can be recommended as effective ways to naturally relieve dry skin.
Supplementing with probiotics, hyaluronic acid, aloe vera extracts, and ceramides may improve dry skin, but more research is needed.
Although taking certain supplements may help improve dry skin, several other factors can contribute to skin dryness and should be considered.
For example, dehydration is a common cause of dry skin, so upping your water intake can be a healthy and easy way to improve skin hydration.
Following an unhealthy diet, having micronutrient deficiencies, and not eating enough may also cause or worsen dry skin.
Therefore, it's important to talk to your healthcare provider if you're experiencing significantly dry, irritated skin to rule out more serious health conditions.
Dry skin can be a sign of an underlying health condition, so it's important to contact your healthcare provider if you have unexplained, significantly dry skin.
The Bottom Line
Dry skin is a common condition that can be caused by a number of factors, such as dehydration, allergic reactions, and diseases like hypothyroidism.
Research has shown that taking certain vitamins and other nutritional supplements, including vitamin D, fish oil, collagen, and vitamin C, may help improve skin hydration and help keep your skin healthy and nourished.
However, although the supplements on this list may act as helpful tools for people who have dry skin, it's important to talk to your healthcare provider if you're experiencing unexplained, chronic dry skin, as this can be a sign of an underlying medical condition.
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1. Processed ‘Low-Fat’ and ‘Fat-Free’ Foods<p>The "war" on <a href="https://www.healthline.com/nutrition/saturated-fat-good-or-bad/" target="_blank">saturated fat</a> could be considered one of the most misguided decisions in the history of nutrition.</p><p>It was based on weak evidence, which has now been completely <a href="https://www.healthline.com/nutrition/it-aint-the-fat-people/" target="_blank">debunked</a>.</p><p>When this discussion started, processed food manufacturers jumped on the bandwagon and started removing the fat from foods.</p><p>But there's a huge problem. Food doesn't taste well when the fat has been removed. That's why they added a lot of sugar to compensate.</p><p>Saturated fat is harmless, but added sugar is incredibly harmful when consumed in excess.</p><p>The words "low fat" or "fat free" on packaging usually means that it's a highly processed product that's loaded with sugar.</p>
2. Most Commercial Salad Dressings<p>Vegetables are incredibly healthy.</p><p>The problem is that they often don't taste very good on their own.</p><p>That's why many people use dressings to add flavor to their salads, turning these bland meals into delicious treats.</p><p>But many salad dressings are actually loaded with unhealthy ingredients like sugar, vegetable oils, and <a href="https://www.healthline.com/nutrition/why-trans-fats-are-bad/" target="_blank">trans fats</a>, along with various artificial chemicals.</p><p>Although vegetables are good for you, eating them with a dressing high in harmful ingredients negates any health benefit you get from the salad.</p><p>Check the ingredients list before you use a salad dressing or make your own using healthy ingredients.</p>
3. Fruit Juices … Which Are Basically Just Liquid Sugar<p>A lot of people believe <a href="https://www.healthline.com/nutrition/fruit-juice-is-just-as-bad-as-soda/" target="_blank">fruit juices</a> are healthy.</p><p>They must be because they come from fruit, right?</p><p>But most fruit juice you find in the grocery store isn't really fruit juice.</p><p>Sometimes they don't have any actual fruit in them, just chemicals that taste like fruit. What you're drinking is basically fruit-flavored sugar water.</p><p>That being said, even if you're drinking 100% quality fruit juice, it's still not the best choice.</p><p>Fruit juice is like fruit, except with all the good stuff (like the <a href="https://www.healthline.com/nutrition/why-is-fiber-good-for-you/" target="_blank">fiber</a>) taken out. The main thing left of the actual <a href="https://www.healthline.com/nutrition/is-fruit-good-or-bad-for-your-health/" target="_blank">fruit</a> is the sugar.</p><p>Fruit juice actually contains a similar amount of sugar as a sugar-sweetened beverage.</p>
4. ‘Heart-Healthy’ Whole Wheat<p>Most "whole wheat" products aren't really made from whole wheat.</p><p>The grains have been pulverized into very fine flour, which causes them to raise blood sugar just as fast as their refined counterparts.</p><p>In fact, whole wheat bread can have a similar glycemic index as white bread.</p><p>But even true whole wheat may be a bad idea because modern wheat is unhealthy compared to the wheat our grandparents ate.</p><p>Around 1960, scientists modified the genes in wheat to increase the yield. <a href="https://www.healthline.com/nutrition/modern-wheat-health-nightmare/" target="_blank">Modern wheat</a> is less nutritious and has some properties that make it much worse for people who have a gluten intolerance.</p><p>There are also studies showing that modern wheat may cause inflammation and increased cholesterol levels, at least when compared to the older varieties.</p><p>Wheat may have been a relatively healthy grain back in the day, but the stuff most people are eating today should be consumed with caution.</p>
5. Cholesterol-Lowering Phytosterols<p>Phytosterols are nutrients that are basically like plant versions of cholesterol.</p><p>Some studies have shown that they can lower blood cholesterol in humans.</p><p>For this reason, they're often added to processed foods that are then marketed as "cholesterol lowering" and claimed to help prevent heart disease.</p><p>However, studies have shown that despite lowering cholesterol levels, phytosterols have negative effects on the cardiovascular system and may even increase the risk of heart disease and death.</p><p>People with phytosterolaemia (a genetic condition that raises plant sterol level in blood) are more susceptible to the negative effects of phytosterols.</p>
6. Margarine<p><a href="https://www.healthline.com/nutrition/7-reasons-why-butter-is-good-for-you/" target="_blank">Butter</a> was labeled a bad food choice in the past because of its high saturated fat content.</p><p>Various health experts started promoting margarine instead.</p><p>Back in the day, margarine used to be high in trans fats. These days, it has fewer trans fats than before, but it's still loaded with refined vegetable oils.</p><p>Not surprisingly, the Framingham Heart Study <a href="https://www.healthline.com/nutrition/butter-vs-margarine/" target="_blank">showed</a> that people who replace butter with margarine are actually more likely to die from heart disease.</p><p>If you want to improve your health, try to eat real butter (preferably <a href="https://www.healthline.com/nutrition/grass-fed-butter-superfood-for-the-heart/" target="_blank">grass fed</a>), and avoid margarine with trans fat. Trans-fat-free margarine has become more available in recent years.</p><p>Always read nutrition facts carefully and limit products that contain trans fat.</p><p>Recommending trans fat-laden margarine instead of natural butter may be considered some of the worst nutrition advice in history.</p>
7. Sports Drinks<p>Sports drinks were designed with athletes in mind.</p><p>They contain electrolytes (salts) and sugar, which can be useful for athletes in many cases.</p><p>However, most people don't need additional salt or liquid sugar in their diet.</p><p>Although often considered "less bad" than sugary soft drinks, there's really no fundamental difference in the two, except the sugar content in sports drinks is sometimes <em>slightly</em> lower.</p><p>It's important to stay hydrated, especially when working out, but most people will be better off sticking to plain <a href="https://www.healthline.com/nutrition/how-much-water-should-you-drink-per-day/" target="_blank">water</a>.</p>
8. Low-Carb Junk Foods<p><a href="https://www.healthline.com/nutrition/low-carb-diet-meal-plan-and-menu/" target="_blank">Low carb diets</a> have been incredibly popular for many decades.</p><p>In the past 12 years, <a href="https://www.healthline.com/nutrition/23-studies-on-low-carb-and-low-fat-diets/" target="_blank">studies</a> have confirmed that these diets are an effective way to lose weight and improve health.<a href="http://onlinelibrary.wiley.com/doi/10.1111/j.1467-789X.2008.00518.x/abstract" target="_blank"></a></p><p>However, food manufacturers have caught up on the trend and brought various low carb "friendly" processed foods to the market.</p><p>This includes highly processed foods like the <a href="https://www.healthline.com/nutrition/are-atkins-low-carb-bars-healthy/" target="_blank">Atkins bars</a>. If you take a look at the ingredients list, you see that there's no real food in them, just chemicals and highly refined ingredients.</p><p>These products can be consumed occasionally without compromising the metabolic adaptation that comes with low carb eating.</p><p>However, they don't really nourish your body. Even though they're technically low carb, they're still unhealthy.</p>
9. Agave Nectar<p>Given the known <a href="https://www.healthline.com/nutrition/10-disturbing-reasons-why-sugar-is-bad/" target="_blank">harmful effects</a> of sugar, people have been looking for alternatives.</p><p>One of the more popular "natural" sweeteners is agave nectar, which is also called agave syrup.</p><p>You'll find this sweetener in all sorts of "healthy foods," often with attractive claims on the packaging.</p><p>The problem with agave is that it's no better than regular sugar. In fact, it's much worse.</p><p>One of the main problems with sugar is that it has excessive amounts of <a href="https://www.healthline.com/nutrition/why-is-fructose-bad-for-you/" target="_blank">fructose</a>, which can cause severe metabolic problems when consumed in excess.</p><p>Sugar is about 50% fructose and 55% high fructose corn syrup, but agave contains even more — up to 70-90%.</p><p>Therefore, gram for gram, agave is even worse than regular sugar.</p><p>"Natural" doesn't always equal healthy. Whether agave should even be considered natural is debatable.</p>
10. Vegan Junk Foods<p>Vegan diets are very popular these days, often due to ethical and environmental reasons.</p><p>However, many people promote vegan diets for the purpose of improving health.</p><p>There are many processed vegan foods on the market, often sold as convenient replacements for non-vegan foods.</p><p>Vegan bacon is one example.</p><p>But it's important to keep in mind that these are usually highly processed, factory made products that are bad for almost anyone, including people who are vegan.</p>
11. Brown Rice Syrup<p><a href="https://www.healthline.com/nutrition/brown-rice-syrup-good-or-bad/" target="_blank"><br>Brown rice syrup</a>, also known as rice malt syrup, is a sweetener that's mistakenly assumed to be healthy.</p><p>It's made by exposing cooked rice to enzymes that break down the starch into simple sugars.</p><p>Brown rice syrup contains no refined fructose, just glucose.</p><p>The absence of refined fructose is good, but rice syrup has a glycemic index of 98, which means that the glucose in it will spike blood sugar extremely fast.<a href="http://www.glycemicindex.com/foodSearch.php?num=2648&ak=detail" target="_blank"></a></p><p>Rice syrup is also highly refined and contains almost no essential nutrients. In other words, it's considered "empty" calories.</p><p>Some concerns have been raised about arsenic contamination in this syrup, which is another reason to be extra careful with this sweetener.</p><p>There are other sweeteners out there, including low calorie sweeteners like:</p><ul><li><a href="https://www.healthline.com/nutrition/stevia/" target="_blank">stevia</a></li><li><a href="https://www.healthline.com/nutrition/erythritol/" target="_blank">erythritol</a></li><li><a href="https://www.healthline.com/nutrition/xylitol-101/" target="_blank">xylitol</a></li></ul><p>In general, try to use all sweeteners wisely and follow recommended serving sizes.</p>
12. Processed Organic Foods<p>Unfortunately, the word "organic" has become a typical marketing buzzword in many instances.</p><p>Food manufacturers have found all sorts of ways to make the same products, except with ingredients that happen to be organic.</p><p>This includes ingredients like organic raw cane sugar, which is basically 100% identical to regular sugar. It's still just glucose and fructose with little to no nutrients.</p><p>In many cases, the difference between an ingredient and its organic counterpart is next to none.</p><p>Processed foods that happen to be labeled organic aren't necessarily healthy. Always check the label to see what's inside.</p>
13. Vegetable Oils<p>We're often advised to eat seed and vegetable oils, which includes soybean oil, <a href="https://www.healthline.com/nutrition/canola-oil-good-or-bad/" target="_blank">canola oil</a>, <a href="https://www.healthline.com/nutrition/grape-seed-oil/" target="_blank">grapeseed oil</a>, and numerous others.</p><p>This recommendation is based on the fact that these oils have been shown to lower blood cholesterol levels, at least in the short term.<a href="https://pubmed.ncbi.nlm.nih.gov/23731447/" target="_blank"></a></p><p>However, it's important to keep in mind that blood cholesterol is a <em>risk factor</em>. It's not a disease in itself.</p><p>Even though vegetable oils can help improve a risk factor, there's no guarantee that they'll help prevent actual health outcomes like heart attacks or death, which is what really counts.</p><p>In fact, several controlled trials have shown that despite lowering cholesterol, these oils can increase the risk of developing heart disease and memory impairment.</p><p>It's important to eat healthy, natural fats like butter, <a href="https://www.healthline.com/nutrition/top-10-evidence-based-health-benefits-of-coconut-oil/" target="_blank">coconut oil</a> and <a href="https://www.healthline.com/nutrition/extra-virgin-olive-oil/" target="_blank">olive oil</a> in moderation.</p><p>Also, follow the recommended serving size, but limit processed <a href="https://www.healthline.com/nutrition/are-vegetable-and-seed-oils-bad/" target="_blank">vegetable oils</a> as if your health depended on it, which it does.</p>
14. Gluten-Free Junk Foods<p>According to a <a href="http://www.npd.com/wps/portal/npd/us/news/press-releases/percentage-of-us-adults-trying-to-cut-down-or-avoid-gluten-in-their-diets-reaches-new-high-in-2013-reports-npd/" target="_blank">2013 survey</a>, about a third of people in the United States are actively trying to limit or avoid gluten.</p><p>Many experts believe this is unnecessary, but the truth is, <a href="https://www.healthline.com/nutrition/6-shocking-reasons-why-gluten-is-bad/" target="_blank">gluten</a>, especially from modern wheat, can be problematic for a lot of people.</p><p>Not surprisingly, the food manufacturers have brought <em>all sorts</em> of gluten-free foods to the market.</p><p>The problem with these foods is that they usually have the same negative effects on your body as their gluten-containing counterparts, if not worse.</p><p>These are highly processed foods containing few nutrients and often made with refined starches that can lead to very rapid spikes in blood sugar.</p><p>Try to choose foods that are naturally gluten free, like plants and animals, not gluten-free processed foods.</p><p>Gluten-free junk food is still junk food.</p>
15. Most Processed Breakfast Cereals<p>The way some breakfast cereals are marketed can be deceiving.</p><p>Many of them, including those that are marketed toward children, have various health claims listed on the box.</p><p>This includes claims like "whole grain" or "low fat" that may be misleading.</p><p>This is especially true when you look at the ingredients list and see that these products mostly contain:</p><ul><li>refined grains</li><li>sugar</li><li>artificial chemicals</li></ul><p>It's important to always review product packaging to confirm what you're actually putting in your body and whether it's healthy for you.</p><p>Truly healthy foods are whole, single-ingredient foods. Their health benefits speak for them.</p><p>Real food doesn't even need an ingredients list, because real food is the ingredient.</p>
The U.S. reported more than 55,000 new coronavirus cases on Thursday, in a sign that the outbreak is not letting up as the Fourth of July weekend kicks off.
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By Jason Bruck
Human actions have taken a steep toll on whales and dolphins. Some studies estimate that small whale abundance, which includes dolphins, has fallen 87% since 1980 and thousands of whales die from rope entanglement annually. But humans also cause less obvious harm. Researchers have found changes in the stress levels, reproductive health and respiratory health of these animals, but this valuable data is extremely hard to collect.
Researchers work with trained dolphins to learn more about their sensory abilities, seen here testing a dolphin's hearing. Jason Bruck / CC BY-ND
A Lot to Learn From Hormones<p>When sampling the blow, we are looking for hormones in mucus as these can be used to gauge psychological and physiological health. We are specifically interested in <a href="https://dx.doi.org/10.1371%2Fjournal.pone.0114062" target="_blank">hormones like cortisol</a> and <a href="https://doi.org/10.1016/j.ygcen.2018.04.003" target="_blank">progesterone</a>, which indicate stress levels and reproductive ability respectively, but can also help determine overall health.</p><p>Additionally, blow samples can detect <a href="https://dx.doi.org/10.1128%2FmSystems.00119-17" target="_blank">respiratory pathogens</a> in the lungs or nasal passages - blowholes evolved from noses after all.</p><p>This health analysis is especially important in areas with oil spills as the chemicals can cause hormonal problems that harm <a href="https://www.carmmha.org/investigating-how-oil-spills-affect-dolphins-and-whales/" target="_blank">development, metabolism and reproduction</a> in dolphins.</p><p>Hormone samples can provide scientists with valuable data, but collecting them from intelligent and unpredictable animals is challenging.</p>
Cetacean Collaborators<p>To build a drone that can stealthily collect spray from moving dolphins, we needed more data on their eyesight and hearing, and this is data that couldn't be collected in the wild nor simulated in a lab.</p><p>We worked with dolphins at facilities like Dolphin Quest in Bermuda, which provides guests opportunities to learn about dolphins while allowing <a href="https://dolphinquest.com/about-us/our-story/" target="_blank">scientists access to animals for noninvasive research</a>. Here the dolphins can swim away if they choose not to work with us, so we had to design the study like a game; the way a kindergarten teacher entertains a class. If the dolphins aren't interested, we don't get to do the science.</p><p>Over the course of hundreds of sessions, we sought to answer two questions: What can dolphins hear and what can they see around their heads?</p><p>To test dolphin hearing, we set up microphones and cameras to record dolphin behavior as we played drone noise in the air. We analyzed the responses to each noise – such as how many dolphins looked at the speaker – and used these as a proxy for their ability to hear the sounds.</p>
<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="5f31daf07a652b8d64a093b993ee4e96"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/UjmQeH3vXHI?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Robodolphin doesn't look like a real dolphin, but it doesn't need to in order to train our drone pilots. C.J. Barton / Oklahoma State University / CC BY-ND<p>To build robodolphin, we worked with dolphins trained to "chuff" or sneeze on command to measure spray characteristics. We used high-speed photography to see the dolphins' breath as it moved through the air. Then we conducted high resolution CT scans of a dolphin head and 3D-printed a replica of a nasal passage.</p><p>Now, we have a complete robodolphin and are tweaking its sprays to be nearly identical to the real thing. This will allow us to determine how close we need to get to collect the samples, and therefore, how quiet our drone needs to be.</p>
The replica dolphin blowhole was designed from a scan of a real blowhole passage, and the spray it produces closely matches the real thing. Alvin Ngo, Mitch Ford and CJ Barton / Oklahoma State University / CC BY-ND
A Bit of Practice, Then Into the Wild<p>In the next few months, we will test flights over robodolphin with existing drones to determine the timing and strategy for collection. From there, we will fabricate a low-noise drone that can fly fast enough and with sufficient maneuverability to capture samples from wild dolphins. Like a video game, we will use the visual field data to develop approach trajectories to stay in the visual blindspots.</p><p>We plan to test our drones on a truck-mounted robodolphin moving down a runway, then using a boat to simulate realistic conditions. The next steps will involve ocean testing with dolphins trained for open ocean swimming. These tests will determine if our devices can catch and hold the hormones as the drone flies back to a researcher's boat.</p><p>Finally, we will deploy the system to collect data on wild dolphins. Our first goal is to test resident dolphins – animals that live on the coasts and deal directly with boat and oil industry noise – which will allow us to learn more about stress resulting from human impacts.</p><p>Those samples are a way off, but if all goes well we will have a specially built drone capable of flying long distances and capturing samples undetected in a few years. The samples collected will allow researchers to do better science with impact on the animals they study.</p>
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Sunscreen pollution is accelerating the demise of coral reefs globally by causing permanent DNA damage to coral. gonzalo martinez / iStock / Getty Images Plus
On July 29, Florida Governor Ron DeSantis signed into law a controversial bill prohibiting local governments from banning certain types of sunscreens.
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By Kelli McGrane
Oat milk is popping up at coffee shops and grocery stores alike, quickly becoming one of the trendiest plant-based milks.
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"Emissions from pyrotechnic displays are composed of numerous organic compounds as well as metals," a new study reports. Nodar Chernishev / EyeEm / Getty Images
Fireworks have taken a lot of heat recently. In South Dakota, fire experts have said President Trump's plan to hold a fireworks show is dangerous and public health experts have criticized the lack of plans to enforce mask wearing or social distancing. Now, a new study shows that shooting off fireworks at home may expose you and your family to dangerous levels of lead, copper and other toxins.
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By Ashutosh Pandey
Billions worth of valuable metals such as gold, silver and copper were dumped or burned last year as electronic waste produced globally jumped to a record 53.6 million tons (Mt), or 7.3 kilogram per person, a UN report showed on Thursday.
Environmental and Health Hazard<p>Experts say e-waste, which is now the world's fastest-growing domestic waste stream, poses serious environmental and health risks.</p><p>Simply throwing away electronic items without ensuring they get properly recycled leads to the loss of key materials such as iron, copper and gold, which can otherwise be recovered and used as primary raw materials to make new equipment, thereby reducing greenhouse gas emissions from extraction and refinement of raw materials.</p><p>Refrigerants found in electronic equipment such as fridge and air conditioners also contribute to global warming. A total of 98 Mt of CO2-equivalents, or about 0.3% of global energy-related emissions, were released into the atmosphere in 2019 from discarded refrigerators and ACs that were not recycled properly, the report said.</p><p>E-waste contains several toxic additives or hazardous substances, such as mercury and brominated flame retardants (BFR), and simply burning it or throwing it away could lead to serious health issues. Several studies have linked unregulated recycling of e-waste to adverse birth outcomes like stillbirth and premature birth, damages to the human brain or nervous system and in some cases hearing loss and heart troubles.</p><p>"Informal and improper e-waste recycling is a major emerging hazard silently affecting our health and that of future generations. One in four children are dying from avoidable environmental exposures," said Maria Neira, director of the Environment, Climate Change and Health Department at the World Health Organization. "One in four children could be saved, if we take action to protect their health and ensure a safe environment."</p>
Europe Leads the Way<p>While most of the e-waste was generated in Asia (24.9 Mt) in 2019, Europe led the charts on a per person basis with 16.2 kg per capita, the report said.</p><p>But the continent also recorded the <a href="https://www.dw.com/en/the-eu-declares-war-on-e-waste/a-51108790" target="_blank">highest documented formal e-waste collection and recycling</a> rate at 42.5%, still below its target of 65%. Europe was well ahead of the others on this front. Asia ranked second with 11.7%.</p><p>The authors said while more that 70% of the world's population was covered by some form of e-waste policy or laws, not much was being done toward implementation and enforcement of the regulations to encourage the take-up of a collection and recycling infrastructure due to lack of investment and political motivation.</p><p>"You have to think about new economic systems," said Kühr.</p><p>One approach could be that consumers no longer buy the products, but only the service they offer. The device would remain the property of the maker, who would then have an interest in offering his customers the best service and the necessary equipment. The maker would also be interested in designing his products in such a way that they are easier to repair and easier to recycle, Kühr said.</p>
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