|Basic InformationLatest News|Most Seniors Use Cellphones While Behind the WheelTaking the Stairs a Better Pick-Me-Up Than CoffeeHealth Tip: How to Get Enough Vitamin DHealth Tip: Better Sleep, a Better LifeThe Top 5 Conditions That Shorten Americans' Lives -- And Are Preventable4 in 10 Americans Still Breathe Dirty AirDon't Let Bugs Dampen Your Outdoor FunPeripheral Vision Varies From Person to Person'I'm Just Too Busy' -- Is Being Overworked the New Status Symbol?Americans Are Spending Billions Nipping and TuckingThese 5 Life Skills Can Boost Your Odds of Well-BeingDon't Bank on Heart-Rate Accuracy From Your Activity TrackerHow to Protect Yourself From Air PollutionGood Sleep Does Get Tougher With AgeGuys, a Good Night's Sleep Might Save Your LifeHealth Tip: Overcoming Dental AnxietyHealth Tip: Spring Cleaning?Health Tip: Talk to Your Doctor About Emotional StrugglesNeed More Zzzzz's?Single Dose of SSRI Prompted Healthy Food Choices During TestDaily Glass of Beer, Wine Might Do a Heart GoodShorter Winter, Longer Spring?Health Tip: Stay Focused on the HighwayHealth Tip: Don't Contaminate Contact LensesParenthood an Elixir for Longevity?Your DNA May Determine How You Handle the Time ChangeHow to Keep a Spring in Your Step With Daylight Saving Time'Pokemon Go' Players Add 2,000 Steps a DayFewer Americans Actively Trying to Lose WeightCan Social Media Sites Leave You Socially Isolated?Hispanics Should Be Wary of the Sun's Rays, TooDaffodils, Margaritas and Other Surprise Skin DangersDo 'Early Birds' Get the Healthier Worm?Health Tip: Use Caution When Applying Hair DyeHow Much Melatonin Is Really in That Supplement?Health Tip: Learn Your Prime Sleep TimeLive Healthy, Live LongerA Stressed Life May Mean a Wider WaistlineU.S. Life Expectancy May Rise to Over 80 by 2030Ready for Spring Break? Have Fun But Play It SafeVitamin D Pumps Up MusclesPossible Drawback to Gluten-Free: Toxic MetalsAmerica in 2017: Pass the Prozac, PleaseSome Partners Need Extra Loving This Valentine's DayThe 'Selfie' ParadoxBeware Heart Attack Risk From Shoveling SnowHow to Stay on Your Feet During Slippery Winter ConditionsPop! Goes That Balloon, and Maybe Your HearingHealth Tip: Daily Routine Can Minimize StressHealth Tip: Going Outside in Winter WeatherLinksBook Reviews
Too Much Sitting Ages You Faster
by -- Robert Preidt
Updated: Jan 18th 2017
WEDNESDAY, Jan. 18, 2017 (HealthDay News) -- You might age a lot faster if you sit too much, a new study warns.
Researchers who assessed nearly 1,500 older women found those who sat most of the day and got little exercise had cells that were biologically older by eight years than the women's actual age.
"Our study found cells age faster with a sedentary lifestyle. Chronological age doesn't always match biological age," said lead author Aladdin Shadyab. He's from the University of California, San Diego's School of Medicine.
The women, aged 64 to 95, answered questionnaires and wore a device for seven days to track their activity levels.
The study doesn't establish a cause-and-effect relationship between accelerated aging and lack of exercise.
Still, "discussions about the benefits of exercise should start when we are young, and physical activity should continue to be part of our daily lives as we get older, even at 80 years old," Shadyab said in a university news release.
Specifically, the researchers found that women who sat for more than 10 hours a day and got less than 40 minutes of moderate-to-vigorous physical activity daily had shorter telomeres. These are caps on the end of DNA strands that protect chromosomes from deterioration.
Telomeres naturally shorten with age, but health and lifestyle factors -- such as smoking and obesity -- can accelerate the process. Shortened telomeres are linked with heart disease, diabetes and cancer, the researchers explained in background notes.
"We found that women who sat longer did not have shorter telomere length if they exercised for at least 30 minutes a day, the national recommended guideline," Shadyab said.
He and his colleagues plan future studies to examine the link between exercise and telomere length in younger adults and in men.
The study was published online Jan. 18 in the American Journal of Epidemiology.
The U.S. National Heart, Lung, and Blood Institute offers a guide to physical activity.
This article: Copyright © 2017 HealthDay. All rights reserved.