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Yoga has shown promising results in in major psychiatric disorders such as depression, schizophrenia, ADHD and sleep complaints, say findings from a review of over 100 studies.

Emerging evidence in support of the 5,000-year-old Indian practice is "highly promising" and showed that yoga may not only help to improve symptoms, but also may also prevent stress-related mental illnesses, said P. Murali Doraiswamy, professor of psychiatry and medicine at Duke, who co-authored the study with Meera Balasubramaniam.

Source: Yoga shows promise in pyschiatric cases - Health - DNA

Yoga, the 5,000-year-old Indian practice, has positive effects on mild depression and sleep complaints, even in the absence of drug treatments, and improves symptoms associated with schizophrenia and ADHD in patients on medication, according to a systematic review of the exercise on major clinical psychiatric disorders.

Source: Yoga may help fight major mental health disorders , AniNews.in

Yoga works much like antidepressants and psychotherapy and helps tackle most mental health problems including depression, attention deficiency and even schizophrenia, researchers have concluded, giving the ancient Indian practice science’s most comprehensive thumbs up yet.

Like medication commonly prescribed for major psychiatric disorders, yoga helps modulate levels of key chemicals like serotonin, and stress hormone cortisol, a review by scientists at Duke University has confirmed.

For some illnesses, yoga may work as a standalone remedy, and in others, as an adjunct to medicine, they found.

Source: Yoga gets biggest science thumbs up yet - Hindustan Times