Even of more concern is that most people know what they a have to do in order to lose and maintain a healthy weight but they just don't do it. That means that they choose not to be healthy.
Life is all about choices and the consequences of the those choices. It's really very simple. Choose to be healthy and you will develop healthy habits and improve both your lifespan and the quality of your life. If not for yourself, then for those who love and depend on you.
