Some stress can be useful; it’s what drives you and helps you really feel required to do excellent results out of a bad situation. Overload of stress is not.
Apart from a healthy body, yoga is valuable in managing state of mind swings. Yoga is one of the oldest methods to controll stress.
Yoga for stress management is a very powerful tool. And while there are many other ways to manage stress, yoga is considered one of the most effective ones.