Study shows one simple way you can keep your parents alive for longer

If you want your parents to live a long and healthy life, there's actually a very simple way you can contribute to their longevity -- spending time with them.

A new study out of the University of California at San Diego discovered a large -- and particularly sad -- contributing factor towards declining health in one's old age: loneliness.

Researchers tracked about 1,600 adults with a median age of 71 and, after taking into account "demographic variables, socioeconomic status, living situation, depression, and various medical conditions," they came to a surprising conclusion.

Almost 23 percent of the people who reported loneliness died within 6 years of the study, as compared to only 14 percent of those who reported having adequate interaction with others.

That's right -- by avoiding spending time with your parents and grandparents for all these years, you might've inadvertently shaved years off their lives.

How much sadder than that does it get?

While this may not seem like the biggest percentage difference in the world, if we could possibly increase our parent's odds of survival by 9 percent just by hanging out with them more often ... well, the choice seems obvious.

Check out these famous celebs who are also grandparents:

13 PHOTOS
Famous people, celebs who are grandparents
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Famous people, celebs who are grandparents

Pierce Brosnan has been a grandparent since 1998.

(Photo by Axelle/Bauer-Griffin/FilmMagic)

Whoopi Goldberg is a grandma extraordinaire, as her first granddaughter was born when Whoopi was only 34. 

(Photo by Vivien Killilea/Getty Images for Carmen Marc Valvo)

Former quarterback Brett Favre became a grandfather while he was still active in the NFL. 

(Photo by Rob Tringali/SportsChrome/Getty Images)

Jim Carrey has been doting on his grandson since 2010. 

(Photo by Jason LaVeris/FilmMagic)

Ozzy and Sharon Osbourne's son, Jack, has given them two granddaughters. 

(Photo by Jason LaVeris/FilmMagic)

Donny Osmond has six grandchildren, with his first being born in 2005.

(Photo by Amanda Edwards/WireImage)

Nicolas Cage became a grandfather in 2014. 

(Photo by Jason Kempin/Getty Images)

Tony Danza has been a grandfather for about 10 years now. 

(Photo by Andrew Burton/Getty Images)

Cee Lo Green became a grandfather at age 35 when his step-daughter had a baby boy. 

(Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)

Kiefer Sutherland has been a grandfather since 2005. 

(Photo by Luca Teuchmann/WireImage)

Charlie Sheen welcomed his first granddaughter in 2013. 

(Photo by: Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)

Harrison Ford has been a grandfather since 1993.

(Photo by Axelle/Bauer-Griffin/FilmMagic)

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(h/t Town & Country)

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