I took some yoga classes at 24 hour fitness but wanted to know what the fuss was about "HOT yoga." It is not for me. Basically, you are doing Yoga with heat. It can be very intense but you are not really losing calories or cleansing your body of toxins. Basically you are just sweating like crazy in a room. Do it next to someone that had onions for lunch and you can smell it. I rather go for the plain yoga, then spend about 20 minutes in the sauna relaxing. Some people swear that this works but I think it is an illusion. The sweat is basically from the heat, not from Yoga.