BOULDER, Colo. -- Yoga's hot -- especially hot yoga.

The usual pretzel-like body twists aren't enough for some yoga lovers. They want to work up a sweat while bending over backwards.

Bikram, or hot yoga, is practiced in a sweltering room, with the heat turned up to 105 degrees.

Therese Martin is convinced. She's a student at a new Bikram Yoga studio in Boulder. Martin said working out in the heat is easier on the muscles. Other students say the intense heat leaves them with a euphoric feeling.

The yoga type was named after Bikram Choudhury, who teaches it at his home school in Beverly Hills, Calif., and travels throughout the United States giving workshops.

Bikram recommends that people who try hot yoga practice the 26 exercises in precise order, to properly prepare their muscles for the appropriate poses.

But hot yoga isn't for everyone. Instructors warn that the high-temp workouts leave some people feeling sick to their stomachs.

Additional Resources:

• Yoga College Of India
• Bikram's Travel Schedule