Half-an-hour's meditation a day can stave off anxiety and depression, research suggests.
So-called "mindfulness meditation" -- a Buddhist technique -- also showed promise in alleviating stress and enhancing quality of life, scientists found.
Researchers analysed data from 47 clinical trials involving 3,500 participants looking at the effects of meditation on a multitude of problems including depression, anxiety, stress, insomnia, diabetes, heart disease, chronic pain and cancer.
They found "moderate" evidence that meditation improved symptoms of anxiety, depression and pain. Low evidence of reduced stress and better quality of life was also seen, while there was insufficient evidence for other benefits.
However, participants did not generally have full-blown anxiety or depression. The research appears in 'JAMA Internal Medicine'.