What style of yoga is practiced in a very warm room?

The style of yoga practiced in a very warm room is Bikram yoga. It is a standardized form of hot yoga associated with Bikram Choudhury and traditionally practiced in a room heated to about 105°F (40.6°C), with roughly 40% humidity.

A traditional Bikram class lasts 90 minutes and follows the same sequence of 26 postures and two breathing exercises. The fixed routine and controlled room conditions distinguish Bikram yoga from hot yoga as a broad category. Other hot-yoga classes may use different temperatures, teachers, sequences, and durations.

The method became widely popular in the United States during the 1970s and later spread internationally. Its heated setting is intended to make the room resemble a hot Indian climate and to produce heavy sweating. A common mix-up is treating “hot yoga” and “Bikram yoga” as exact synonyms: Bikram yoga is one particular, highly structured hot-yoga system, while hot yoga can describe many different practices.