yoga is part of life from ancient times. It increases strength and power of life.In yoga you inhail oxygen and output is carbon dioxyde so increases the oxygen in the body.Those people did yoga knows there benifits .If you want to be the toppers at any field then it is for you it increases concentration level and improve your thinking .After doing maditation (pranayama) your positive thinking increases and no negative thougts. so in shot you achive anything that you want in life with the help of yoga.