8 Benefits of Sweating It Out With Hot Yoga
Medically reviewed by Daniel Bubnis, MS, NASM-CPT, NASE Level II-CSS
Hot yoga has become a popular exercise in recent years. It offers many of the same benefits as traditional yoga, such as stress reduction, improved strength, and flexibility.
But, with the heat turned up, hot yoga has the ability to give your heart, lungs, and muscles an even greater, more intense workout.
Are you interested in learning more about the ways you can benefit from hot yoga? This article will take a closer look at what this sweat-inducing workout can do for you and how you can get started.
What is hot yoga?
You may hear the terms "hot yoga" and "Bikram yoga" used interchangeably, but they're not exactly the same thing.
Bikram yoga, developed by a yogi named Bikram Choudhury, is done in a room heated to 105°F (41°C) with 40 percent humidity. It consists of 26 poses and two breathing exercises that are done in the same order in every class. Bikram yoga sessions typically last 90 minutes.
Hot yoga, on the other hand, really just means that the room is heated above normal room temperature. The heat can be set to whatever the yoga instructor wants, though it's typically between 80 and 100°F (27 and 38°C).
Hot yoga sessions can include any variety of poses, and the time of each class will vary from studio to studio. And unlike Bikram yoga, which is a quieter, serious practice, hot yoga often includes music and more interaction among the people in the class.
Bikram yoga has lost followers in recent years due to assault allegations against its founder. Some studios may use the term "hot yoga" rather than "Bikram yoga" to describe their heated classes. So, it's a good idea to read class descriptions carefully before signing up.
What are the benefits of hot yoga?
Regardless of the room temperature, both hot yoga and Bikram yoga aim to provide relaxation of the mind and improve physical fitness.
A heated environment can make the practice of yoga more challenging, but some of the benefits may be worth it, especially if you're looking to make progress in one of the areas outlined below.
If done correctly and safely, hot yoga can provide the following benefits:
1. Improves Flexibility
You may already know that stretching after you warm up your muscles is safer than stretching cold muscles.
So, it follows that an environment like a hot yoga studio can make yoga poses easier and more effective. The heat allows you to stretch a little further and achieve a greater range of motion.
A 2013 studyTrusted Source of Bikram yoga found that after 8 weeks, yoga participants had greater flexibility in their low back, shoulders, and hamstrings than the control group.
2. Burns More Calories
A 160-pound person can burn around 183 calories an hour with traditional yoga. Turning up the heat can help you burn even more calories.
According to researchers at Colorado State University, the calorie burn can be as high as 460 for men and 330 for women during a 90-minute Bikram yoga session.
Hot yoga, even if it's not quite as intense as a Bikram session, will burn more calories than a traditional yoga workout.
3. Builds Bone Density
Supporting your weight during a yoga pose can help build bone density. This is especially important for older adults and premenopausal women, as bone density declines as you age.
A 2014 study of women who participated in Bikram yoga over a 5-year period found that premenopausal women had increased bone density in their neck, hips, and lower back.
This lead the authors of the study to believe that Bikram yoga may be an effective option for reducing the risk of osteoporosis in women.
4. Reduces Stress
Many people turn to yoga as a natural way to deal with stress.
A 2018 studyTrusted Source of stressed, physically inactive adults found that a 16-week program of hot yoga significantly reduced the participants' stress levels.
At the same time, it improved their health-related quality of life, as well as their self-efficacy — the belief that you have control over your behavior and social environment.
5. Eases Depression
Yoga is well known as a technique to help you relax and improve your mood. According to the American Psychology Association, it may also be a helpful therapy for reducing the symptoms of depression.
6. Provides a Cardiovascular Boost
Striking different yoga poses in high heat can give your heart, lungs, and muscles a more challenging workout than doing the same poses in a lower temperature.
According to a 2014 study, just one session of hot yoga is enough to get your heart pumping at the same rate as a brisk walk (3.5 miles per hour).
Hot yoga also revs up your respiration and metabolism.
7. Reduces Blood Glucose Levels
While any type of exercise can help burn energy and reduce circulating levels of glucose (sugar) in your bloodstream, hot yoga may be an especially helpful tool for people at higher risk for type 2 diabetes.
A 2013 studyTrusted Source found that a short-term Bikram yoga program improved glucose tolerance in older adults with obesity, but it had less of an effect on young, lean adults.
8. Nourishes the Skin
Sweating, and a lot of if, is one of the main objectives of hot yoga.
One of the benefits of sweating in a warm environment is that it can improve circulation, bringing oxygen- and nutrient-rich blood to skin cells. This, in turn, may help to nourish your skin from the inside.
If you're in good health, hot yoga is generally safe. But, as with most types of exercise, there are some safety precautions to keep in mind.
- Dehydration is a major concern with hot yoga. Drinking water before, during, and after a hot yoga class is essential. A low-calorie sports drink may also help restore electrolytes lost during your hot yoga workout.
- Some pre-existing health conditions may make you more prone to passing out in a hot room. This includes heart disease, diabetes, arterial abnormalities, anorexia nervosa, and a history of fainting.
- If you have low blood pressure or low blood sugar, you may be prone to dizziness or lightheadedness with hot yoga. Check with your doctor to make sure hot yoga is safe for you.
- Pregnant women should consult their doctor before trying hot yoga.
- If you've had heat intolerance problems in the past, you may want to stick with yoga that's done at a normal temperature.
- Stop right away if you feel dizzy, lightheaded, or nauseous. Leave the room and rest in a cooler environment.
How to Get Started
If you haven't done yoga before, you may want to try a regular yoga class first to see if the instructor and studio are a comfortable fit for you. While there, ask about hot yoga classes and if there are classes that cater to beginners.
You may also want to try out a few different yoga studios before you commit to one. Ask if the yoga studio offers free or discounted trial classes so you can see if it's the right fit for you.
If you're ready to give hot yoga a try, consider these tips to get started:
- Wear lightweight, breathable fabrics that can wick away your sweat.
- Bring a towel to place over your yoga mat, which may get a little slippery once you start sweating. You can also bring an extra towel for your face and hands.
- Consider special gloves and socks that can provide a better grip in a hot yoga studio.
- Bring a large, insulated water bottle filled with cold water that you can sip throughout your hot yoga session.
The Bottom Line
Hot yoga may not be for everyone. But if you enjoy regular yoga, and want to step it up a notch, it may be just what you're looking for.
Hot yoga offers a wide variety of benefits for both your mind and body. It can help you burn calories, build bone density, boost your cardiovascular fitness, and improve your flexibility. It may also help ease depression and reduce stress.
If you have any health conditions, including heart or artery issues, diabetes, anorexia nervosa, a history of fainting, or heat intolerance, consult your doctor first before doing a hot yoga session.
Reposted with permission from our media associate Healthline.
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The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.
"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."
The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.
They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.
They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.
But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.
"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.
What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.
It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.
To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.
First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.
Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.
University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.
"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."
Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.
"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.
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