Yoga has various health benefits for conditions like pregnancy, depression, and anxiety. Traditional yoga focuses on spirituality and managing humanity's flaws by ceasing mental disturbances. However, as yoga spread to the West it became disconnected from its traditions and viewed mainly as exercise. Controlled studies have found yoga improves fitness in elderly populations, but its clinical effects are difficult to determine outside of such studies. Yoga originated from Hinduism but was transformed and appropriated for mass adoption in Western cultures. Proper breathing is key to yoga's healing effects by improving blood circulation.