The Longevity Quiz

The USDA Dietary Guidelines for Americans say that you should get at least 150 minutes a week of moderate-intensity exercise, or 75 minutes a week of vigorous exercise, for substantial health benefits. You can break up your activity into chunks of at least 10 minutes each and spread them throughout the week. You should start slowly and build up gradually. Check with your health care provider before increasing or changing your activity level.

Even if you smoke now, it’s not too late to quit. Even people who stop smoking as older adults can see improved health, according to the American Cancer Society.

Eating a balanced diet is important. Include lots of fruits, vegetables, and whole grains every day. For a more detailed look at what you should eat—and how much you should eat—visit the USDA's Choose My Plate website (http://www.choosemyplate.gov).

It's important to maintain a healthy weight. Even if they eat well and exercise regularly, people who are overweight or obese are more likely to have health problems, including some forms of cancer, type 2 diabetes, high blood pressure, and osteoarthritis, according to the American College of Physicians.

Even simple acts like wearing your seat belt or getting a pneumonia vaccination and yearly flu shot can help you live longer.

You should continue to challenge your mind no matter what your age. The gradual decline in short-term memory often associated with aging may be eased with daily mental challenges, the National Institute on Aging says.

You should continue to invest time in your relationships. People who stay connected to their community, family, and friends live longer than their more isolated peers.

A strong belief in yourself and your ability to deal with situations can help you cope with stress and is an important element in maintaining your independence.

If you are 60, you could conceivably live another 20, 30, or 40 years. Allocate your resources accordingly.