Hatha yoga is a combination of movement ... You might hold poses for 30 seconds to one minute, explains Smith, unlike in a vinyasa flow class where poses are held for up to five breaths.
Other types of yoga, like Vinyasa, incorporate Hatha yoga poses and may flow more quickly. Hatha yoga classes can range anywhere from 45 to 90 minutes long, but you can benefit from even just 15 ...