Best way to improve health fast?

Diet and exercise: Eat a healthy, low fat diet that is high in vegetables, fruit, and lean protein. Also, regular aerobic exericise such as walking, swimming, cycling improves your cardiovascular system and reduces your risk of high blood pressure. It also helps you to feel good about yourself and you can set goals to achieve success on a weekly or monthly basis.

Exercise: See this excellent video: http://bit.Ly/13weqyi if you already exercise, quit smoking (if you smoke). If you already exercise and don't smoke, stop eating junk. If you you do all those things, work at getting 8 hours of sleep a night.