Om…. It's just not good for the health; it seems yoga is good for other people's pockets, too. A recent study in the US shows that at least 20.4 million Americans practice yoga, a 29-percent increase from numbers in 2008, according to the Yoga Journal. Yogis spend US$10-3-B a year on classes, products, clothing, and vacation, among others, the same study showed. Majority of yoga practitioners -- 82.2% -- are women and fall within the age range of 18-44. Those surveyed said they started yoga for flexibility (78.3%), general conditioning (62.2%), and stress relief (59.6%), among others.