Hot yoga is a major trend in which participants practice in a hot room, often 90-100+ degrees. Mass marketers of yoga love the “passive heating” approach of hot yoga, as it gives the perception of flexibility and a deeper workout in a shorter period of time. More classes per day = more revenue.
Yoga HotDish classes will warm your body and make you flexible, but keeping with classical yoga philosophy, the heat comes from within, building slowly through pranayama breathing techniques and a slow crescendo of ever-intensifying asana/poses. Yoga takes time, and you can’t just crank the furnace to force to body into submission. Finally, hot yoga is contra-indicated for numerous conditions, from heart and respiratory issues to being over weight or sleep deprived. Yoga is a lifelong practice when done in moderation. Making it faster, hotter and watered down is the American Way, no doubt, but do be careful!