A guide for occupants of a body

This is a typical title for a Bill Bryson book. I haven't finished it yet. It's more like a history of medical progress and some of the stuff in here is a shocker.  I just finished a section on exercise. My BMI is 29 which is in the overweight category.  It seems I need to lose 10kg for a starter. I did do that once about 10 yar ago, not sure if I can do it again.  According to trends, the current new generation will be the first ever to not live as long as their parents, due wholly to obesity.  The US obesity problem costs $150 billion per year. If we all want to improve the world Eat Less Exercise More.