Hot yoga benefits: how high temperatures influence your practice
We combed through the research and asked expert teachers to outline hot yoga benefits
Hot yoga benefits include more than leaving your class sporting a glistening sheen of sweat. Perceived benefits of hot yoga include improved balance, range of motion, and full body strength, but any regular hot yogi will know both mind and body can benefit from turning up the heat in your next yoga class.
It’s worth noting that the evidence is still limited and hot yoga benefits require more research – as summarized in a study published in the International Journal of Exercise Science – specifically when it comes to improvements in aerobic capacity and caloric expenditure.
However, some gains could certainly still be up for grabs, so we spoke to experts to tell us more.
Find one of the best yoga mats according to our tried and tested top picks, discover yoga for digestion to kickstart your gut health, or read on to find out why hot yoga benefits are worth your sweat.
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Hot yoga improves flexibility
Research, like this randomized controlled study published in the Journal of Strength and Conditioning, has found that hot yoga participants can experience increased shoulder, lower back, and hamstring flexibility after just eight weeks.
“Hot yoga carries all the regular benefits of yoga with a few added extras resulting from the heat, including an enhanced cardio challenge and increased flexibility,” says 350-hour qualified yoga teacher and hot yoga instructor, Eloise Skinner. “The heat enables your body to relax into postures and deepens your breathing and physical practice.”
Eloise Skinner is a qualified yoga, Pilates and mindfulness teacher. She currently holds classes at various studios across London. She's also an author and the founder of two educational start-ups.
Unbendy yogis rejoice – you don’t need to know how to be good at yoga, either. Hot yin classes (where students sit and hold stretches for several minutes at a time) are particularly beneficial, as the heat helps to release muscular tension and speeds up the relaxation of soft tissue; this improves flexibility and range of motion in your muscles, meaning you might find certain poses easier to reach than usual.
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Research – like this study by Physical Therapy in Sport – has shown that heat application to muscles can enhance the efficacy of stretching. The review also found a greater increase in range of motion when combining heat with stretching, rather than using heat alone, concluding that heat could provide added benefit on stretch-related gains of range of motion.
It can relieve stress
Feeling stressed? A daily yoga practice could just be your answer. There’s a wealth of research pointing to yoga as a stress-relieving practice, including a study published in the Journal of Science and Medicine in Sport that found that a 16-week program of hot yoga significantly reduced stress levels in sedentary and stressed adults.
“It also encourages you to focus on deep breathing, which could help with your stress levels,” Lorna Bailey, yoga and mindfulness teacher, and owner of The Yogini Bear says. “Deep breathing trains your lungs to take in more air, thus stimulating the parasympathetic nervous system. This takes your body out of ‘fight-or-flight’ and into the rest, repair, and healing state.”
Lorna Bailey is a qualified yoga teacher and personal trainer, currently residing in Wales, UK. She has been a keen practitioner of yoga for over two decades and now spends her time teaching yoga with a neuro-scientific approach.
A systematic review from Frontiers in Human Neuroscience posited that deep, slow breathing could be linked with parasympathetic activity. As you're likely to be focusing on deep breathing during a hot and sweaty yoga session, you could experience an uptick in parasympathetic activity and a drop-off in stress.
To further illustrate the point, the American Psychological Society has published multiple independent studies that found hot yoga to be effective at reducing symptoms of depression and anxiety.
Better cardio workout and calorie burn
While yoga for digestion could soothe sore stomachs, another long-term benefit of hot yoga is a boost to your cardio credentials. Hot yoga ramps your heart rate up which could help you torch more calories during practice.
A study published in the Medicine & Science in Sport & Exercise Journal found that women burned an average of 333 calories, and men 378 calories, in a single 90-minute Bikram hot yoga session, which is a slower-paced heated class than styles like vinyasa. This was comparative to the equivalent of a 3.5mph brisk walk. A small study in the Journal of Physical Activity and Health found that a 60-minute vinyasa class burned slightly fewer calories than a brisk walk.
Exercise in the heat will burn more calories, as your heart has to work harder to pump blood around your system and cool your body down. As such, a sweaty yoga session might take more out of you than a standard session.
Better sleep
According to the Sleep Foundation, yoga and sleep go hand in hand because of the mindful nature of practice and the use of regulatory breathing techniques. The foundation even recommends practicing hot yoga several hours before bedtime to encourage you to drift off more peacefully at night. A National Health Interview Survey (NHIS) found that 94% of people use yoga for wellness reasons, 55% of yogis reported improved sleep, and over 85% reported a reduction in stress levels.
Stress and sleep have a very close relationship. High stress levels have been shown to directly correlate with lack of sleep, and lack of sleep has been linked to feeling irritable, anxious, sluggish, and stressed, the American Psychological Association reports. Yoga combines gentle movement, meditation, and breath to reduce stress and regulate the nervous system, helping to improve sleep.
Is hot yoga safe?
If practiced properly, hot yoga is absolutely safe. But there are a few conditions that prevent the practice, like high blood pressure, pregnancy, and joint conditions.
Due to the extra weight carried during pregnancy, as well as looser tendons and ligaments, there’s an increased risk of injury brought on by practicing in the heat. Prolonged heat exposure can also lower blood pressure which can make people feel dizzy or faint during practice. The clammy heat increases your flexibility too, which puts overzealous yogis at a greater risk of injury through overstretching; this means you could also be at risk if you’re hypermobile or pregnant.
Still keen to brave the heat?
According to a small study conducted by the American Heart Association, the regular practice of hot yoga has shown to decrease blood pressure and stress levels in participants over a 12-week program, but if you’re already having issues with your blood pressure, it might be safer to practice in a non-heated environment or ask your doctor.
“If you feel light-headed during a class, you can take a recovery pose like a child's pose and drink lots of water,” advises Skinner. “Beginners should take their first couple of hot classes at a steady pace, remaining careful not to push beyond individual limits or risk injuries.”
Sam Hopes is a level III fitness trainer, level II reiki practitioner, and resident fitness writer at Future PLC. Having trained to work with both the mind and body, Sam is a big advocate of using mindfulness techniques in sport and aims to bring mental wellbeing to the forefront of fitness. She’s also passionate about the fundamentals of training and how we can build more sustainable training methods. You’ll find her writing about the importance of habit-building, nutrition, sleep, recovery, and workouts.