Doctors give the top seven things we need start doing now if you want to live long.
Ditch the cigarettes. Lighting up kills just under half a million people in the United States each year.
"That's more than the auto accidents, that's more than HIV, that's more than all the murders, combined," said Dr. Jan Garavaglia, a medical examiner.
New research shows women who stop smoking before 40 live a decade longer than those who keep puffing.
Also, pour yourself some wine. Moderate drinkers slash their risk of heart disease by up to 40 percent.
And do your own housework. A recent study found 150 calories' worth of chores a day can lower high blood pressure by 13 points for eight hours.
A 30-minute nap can reduce heart mortality by 37 percent.
Purdue University scientists found constant worrying shortens your lifespan by about 16 years.
Maintain a healthy waistline. "Measure your waistline around where the navel is," said cardiologist Dr. Holly Andersen.
That number should be less than half your height. So if you're 5 feet 2 inches tall, your waist should be less than 31 inches.
Go ahead and laugh: Comedy helps lengthen your life. University of Maryland scientists found watching 15 minutes of funny videos can improve blood flow to your heart by 50 percent.
One last tip: If you want increase your life expectancy, stand up as often as you can. One Canadian researcher found cutting the amount of time you sit can lower your risk of prostate cancer by 10 percent, lung cancer by 20 percent, and colon cancer by 30 percent.