The number of centenarians -- people who live to be 100 and older -- is growing throughout much of the world. Could you one day be part of this long-lived population? Take this quiz to see how your habits measure up to those of today's active, healthy centenarians.
About how many centenarians are there worldwide?
How does obesity affect a person's life expectancy?
It has no effect.
It can shorten it by 3 to 10 years.
It can shorten it by 20 to 30 years.
How does moderate alcohol intake affect your life expectancy?
It increases the risk of early death by 15 percent.
It reduces the risk of early death by 5 percent.
It reduces the risk of early death by up to 18 percent.
How can working puzzles help you live longer?
It improves your social skills after age 85.
It helps improve heart function.
It can help delay the onset of dementia.
What area is home to the most centenarians?
Record inaccuracies make this difficult to determine.
San Francisco, California
How can genetics affect longevity?
The right genes improve your odds, but don't guarantee a long life.
Genetic flaws can shorten your life, but not lengthen it.
Genetics have no effect on longevity.
What is NOT a common centenarian food?
almonds and other shelled nuts
green leafy vegetables
How can exercise affect your life expectancy?
It makes you vulnerable to accidents and shortens your life expectancy by 6 months.
It can add 15 years to your life expectancy.
It can add 3 years to your life expectancy.
What is a blue zone?
an area of the world where people tend to live longer
a region with an extremely high death rate under age 60
an area where people only eat food that comes from the ocean