Losing Your Hair? You Might Blame the Great Stem Cell Escape.

By observing mouse hair follicles, scientists discovered an unexpected mechanism of aging. “If I didn’t see it with my own eyes I wouldn't believe it,” one said.

An Anti-Aging Pill? Think Twice (Published 2019)

The diabetes drug metformin, sometimes taken to slow aging, may blunt the health benefits of exercise.

Falls Can Kill You. Here’s How to Minimize the Risk. (Published 2019)

Falls are the leading cause of fatal and nonfatal injuries among older adults. Every 19 minutes in this country, an older person dies from a fall.

Is Aerobic Exercise the Key to Successful Aging? (Published 2018)

Aerobic activities like jogging and interval training can make our cells biologically younger; weight training did not have the same effect.

One Broken Bone? You May Be at Risk for Another

Any fracture in an older woman or man, whether from a car accident or sidewalk slip, may be a sign you should have your bone health checked.

Ben Platt Isn’t the Oldest Adult to Play a Teenager Onscreen

Here are our picks for the most memorable performances with the biggest age gaps between star and character. Did they pull it off?

Regular Exercise May Keep Your Body 30 Years ‘Younger’ (Published 2018)

The muscles of older men and women who have exercised for decades are indistinguishable in many ways from those of healthy 25-year-olds.

The New Science on How We Burn Calories

How could that change our understanding about, for starters, chronic disease, aging and obesity?

Am I ‘Old’? (Published 2018)

As with beauty, the meaning of “old” depends on the person you ask.

How to Age Gracefully

Inspired by a new book, “Stupid Things I Won’t Do When I Get Old,” I’m taking stock of my life and deciding what I need to reconsider.

Scared of High-Intensity Interval Training? A Heart Monitor Can Make It Fun and Easy (Published 2018)

The popular fitness trend sounds brutal. But a simple tool can make it speed by.

Taking Up Running After 50? It’s Never Too Late to Shine (Published 2019)

People who start running competitively in their 50s can become as swift and well-muscled as older runners who have trained lifelong.

25 Again? How Exercise May Fight Aging (Published 2019)

The muscles of those who worked out looked like those of 25-year-olds and showed less of the inflammation that is tied to health problems as we age.

Answers to Your Questions on When to Start Collecting Social Security

More details on why experts advise to wait to claim benefits and on benefits for divorced spouses.

The Sunday Read: ‘How Long Can We Live?’

New research is intensifying the life span debate — with profound implications for the future of the planet.

Serena Williams and Her Fellow Tennis Greats Are Limping Toward the Exits

Graceful final chapters in tennis can be difficult to achieve, as Serena Williams and Roger Federer are learning firsthand.

The Right Kind of Exercise May Boost Memory and Lower Dementia Risk (Published 2019)

Being physically fit may sharpen the memory and lower our risk of dementia, even if we do not start exercising until we are older.

How Weight Training Changes the Brain (Published 2019)

In animals, weight training appeared to promote the creation of new neurons in the memory centers of the brain.

The Thrill Seeker

From the top of the big kids’ slide, you can see forever.

Exercise Makes the Aging Heart More Youthful (Published 2018)

For lifelong heart health, start exercising early in life and keep exercising often. But even if you have neglected to exercise and are now middle-aged, it is not too late.