Go on give it a go - no experience necessary!
The practice of yoga makes the body strong and flexible, it also improves the functioning of the respiratory, circulatory, digestive, and hormonal systems. Yoga brings about emotional stability and clarity of mind.
Think of this practice as being the means and tools to realign and rebalance your vehicle (body) on a regular basis. You take control and you can then become your body mechanic instead of having to pay someone else to do it (medical professionals). Because your body is finely tuned you will find that your chances for injuries and illnesses will drop as you are in a much more attuned state.