You must have heard the proverb" A healthy mind resides in a healthy body." When you are healthy in every aspect i.e, physically,mentally and spiritually, you begin to develope positive attitude towards your life.You start to think of the ways which would help you make your life better and just the way you want it to be.You start setting aims and goals for your life and develope positive attitude towards achieving them.A healthy mind not only makes you capable of setting,pursuing and achieving your aims and objectives but,it also guides you throughout and makes you understand which way is ethical and which is not.A healthy personality sends out positive vibes which is appreciated by everyone as people are instantly attracted by such a person.So, having a healthy lifestyle is pretty much,the best thing to develope. Hope it serves you. :)