3.Choose Friends Wisely
Your friends’ habits rub off on you, so look for buddies with healthy lifestyles. Your chances of becoming obese go up if you have a friend who adds extra pounds. Smoking also spreads through social ties, but quitting is also contagious.
4.Quit Smoking
We know giving up cigarettes can lengthen your life, but by how much may surprise you. A 50-year British study shows that quitting at age 30 could give you an entire decade. Kicking the habit at age 40, 50, or 60 can add 9, 6, or 3 years to your life, respectively.