How does Hot Yoga help with weight loss?

Yoga has many benefits.  So why choose Hot Yoga?  Or, more specifically, why choose hot yoga for weight loss? How does weight loss occur with Hot Yoga?
"The heat of a hot yoga class does not cause permanent weight loss. You'll lose water weight, temporarily, through sweating. When you rehydrate, however, your body will regain the water it needs to function properly, and your weight will return to normal. However, the heat raises your heart rate slightly. As you sweat, your blood volume decreases because of dehydration, and your heart must pump faster to keep the blood flowing throughout your body. In this way, the heat helps you reach and maintain your target heart rate, achieving a level that burns calories effectively."
- http://www.livestrong.com/article/401127-weight-loss-benefits-of-bikram-yoga/

Emily Kathryn Narayan, RYT

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