1. Gain Flexibility In Your Hamstrings
Touching your toes, without hurting your back, is a pretty sweet benefit of going to regular yoga. Not to mention it will help you sit more comfortably whether on a chair or the floor. It will also give you more much needed range of motion for other sports and hobbies.
2. Strengthen Your Upper Body
By using your own body weight as resistance, yoga works your upper body including arms, chest, and shoulders. You will gain definition and strength, without lifting a single weight.
3. De-stress
Both men and women live with stress. But very often we handle it differently. According to WebMD we both produce the stress hormone Cortisol, but women produce far more of the anti-stress hormone, Oxytocin. You men are getting short changed. Yoga calms the nervous system and balances hormones, like Cortisol.
Reference:
http://women.webmd.com/features/stress-women-men-cope