Balances the Body
Practicing yoga balances the entire nervous system and also energizes and relaxes the body simultaneously. For the true benefits of yoga to take place, both sides of the brain need to be worked out. That is why a lot of the yoga poses concentrate on training and using both sides of the body.
Standing poses are really good for rebalancing as our bodies tend to rely on the stronger and more dominate side.
You can learn how to straighten that other side up so it will match the stronger side.
Uneven bodies eventually lead to chronic illnesses and injuries through over compensation of one side.
Basically it comes down to retaining the mind and yoga is the great leveler. You will learn to use both parts of your brain more effectively therefore tuning and realigning everything to work far better than ever before. It will benefit all aspects in your life especially if you are anmbitious sport type that likes to get the most out of it that they can.
Think of yoga as being the means to realign and rebalance your vehicle on a regular basis. You can become your body mechanic instead of having to pay someone else to do it. Because your body is better balanced you will find that your chances for injuries will drop as you are in a much more attuned state.
Don't wait for something major to happen to you before you decide to do something about it. That's reactive behavior and that's gonna set you back big time, all you have to do is take action now.
Prevention and care is by far the best medicine
It all comes down to balance.