‘Sound mind resides in sound body’ is an older concept. ‘Sound Mind builds sound body’ is a newer one. ‘What you think and how you think’ do guide your health. It makes an impact, whatever it is negative or positive, on your body. So just, start thinking well and positively. ‘You are what you eat’ is an old fact, here is the new one, ‘You are what you think’.
As soon as you become mentally distressed, most of the time your body follows the way to become ill. Just get rid of negative thinking and avoid the things that give you mental stress. Here are some tips to make you happy always such as learn to let go of the negative thoughts, keep distance with the people who have a negative effect on you.