Meditation brings wisdom; lack of mediation leaves ignorance. Know well what leads you forward and what hold you back, and choose the path that leads to wisdom. - Buddha
Much of the medical community around the world hold yoga in a high regard as significant to the human health, both mentally and physically. There has been many studies with both conclusive and inconclusive results. Long term yoga users has reported their mental health improvements as well as reduced symptoms of asthma in asthmatics. Studies and most people will tell you that regular use of yoga will improve your overall mood and anxiety levels, i would even go as far to say it makes me feel better than walking does. Yoga and meditation help me clear my mind and refocus on what needs my attention.
Within 8 weeks of practicing Hatha Yoga you should expect to see an increase in your strength. Which is really no surprise, the positions such as a four-limbed staff pose and the boat pose stimulate the same muscles as regular sit ups, crunches and planks.
Not only will you feel and look better but regular practise of yoga will improve your sleep. Also ladies, you'll be happy to hear that it also improves things for you in the bedroom!