HOW STUFF WORKS
QUIZZES

FOLLOW US
Could you live to be 100?
by Staff
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?

  • 2 million
  • 680,000
  • 450,000

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
  • Lima, Peru

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?

  • ground beef
  • 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

What kind of attitude can help you live longer?

  • a type-A, get-things-done attitude
  • an open-minded, go-with-the-flow attitude
  • a fearless, daring attitude