Well

By preaching that you didn’t have to already be slim to work out, Simmons reshaped the fitness industry — and ushered in the modern era of exercise.

By Danielle Friedman

Encouraged on social media, many Americans are estranging themselves from their families as a therapeutic step.

By Ellen Barry

Her frank and frequently hilarious advice about sex, love and loneliness reached millions. How did she influence your life?

By Catherine Pearson

The sport, in which you strap on a 30-foot kite and skim across the waves, is about to make its Olympic debut. Here’s where non-Olympians can give it a try.

By Nora Walsh

Lisa Pisano, 54, lived with the organ for 47 days. She was the first patient to receive both a heart pump and an organ transplant, doctors said.

By Roni Caryn Rabin

As chronic work stress climbs, entrepreneurs find opportunity in the burgeoning space of burnout coaching.

By Martha C. White

A New York Times mental health reporter wants to hear why therapy didn’t work out.

By Christina Caron

Nara and Lucky Blue Smith make some of their own cosmetics, but the practice has risks.

By Katie Mogg

Many Americans plan to donate their organs for transplants or their bodies for medical science. Few realize that there’s a growing need for their brains, too.

By Paula Span

Sauna training, frozen balloons and “marshmallow suits” help athletes manage extreme temperatures.

By Talya Minsberg

Gastrointestinal issues are a common but often unrecognized sign of infection.

By Dani Blum

Scientists are still studying the long-term health effects of smoke exposure.

By Dani Blum

With coronavirus cases on the rise, summer travelers are once again facing difficult questions. Here’s the latest travel guidance from health experts.

By Shannon Sims

“Hurkle-durkling” is in, along with gut health and floor time.

By Dani Blum

Whether you want to get comfortable talking about sex or become an ace apologizer, these tips are for you.

By Jancee Dunn and Catherine Pearson

Is red wine good for your heart? Are ultraprocessed foods really that bad for you? We have answers to these questions and more.

By Alice Callahan

The drug, Kisunla, made by Eli Lilly, is the latest in a new class of treatments that could modestly slow cognitive decline in initial stages of the disease but also carry safety risks.

By Pam Belluck

Some worry it robs you of the benefits of sunshine, like vitamin D. We asked experts to weigh in.

By Caroline Hopkins

A new study tracked weight changes associated with eight popular drugs.

By Christina Caron

This summer, find a new fitness routine that can help you build a habit for the rest of the year.

By Erik Vance

It’s hydrating, to start. Here’s what else experts had to say about this warm-weather treat — along with some refreshing recipes.

By Caroline Hopkins

Therapists, researchers and an etiquette expert weigh in on when you can disappear with a clear conscience and the ways to get around it.

By Catherine Pearson

Pets were once dismissed as trivial scientific subjects. Today, companion animal science is hot.

By Emily Anthes

A Texas hospital is experimenting with hologram technology for doctors to see patients. Some health care experts wonder if it’s beneficial.

By Hank Sanders

Mine is the first generation that has corporate benefits for a technology with the potential to slow the biological clock. Is it feminist dream or Silicon Valley fantasy?

By Emma Goldberg

Dr. Alex Arroyo, a director of pediatric medicine in Brooklyn, gets to live out his “Star Wars” dreams, practice jujitsu and make a big mess while cooking for his family.

By Sarah Bahr

The statement followed a report in The Times that a federal health official had urged the removal of age minimums from treatment guidelines for transgender minors.

By Roni Caryn Rabin, Teddy Rosenbluth and Noah Weiland

We asked fitness experts what wearable weights, which are popular on TikTok, can actually do for your health.

By Danielle Friedman

The case, involving a supplement intended to reduce cholesterol, has put attention on how companies are allowed to self-report claims about their products.

By River Akira Davis and Hisako Ueno

Creating stuff is good for your brain.

By Jancee Dunn

A few viral products aim to put fun in the sun(screen).

By Alyson Krueger

Stress, ovarian cancer, buoyancy disorders: Every pet has its troubles, and needs a good doctor who makes house calls.

By Emily Anthes and Nic Coury

As the virus continues to mutate, the C.D.C. urged Americans to roll up their sleeves again for annual vaccinations.

By Apoorva Mandavilli

The signs of chronic illness are often dismissed by doctors as “just stress.” But that comes from a complex relationship between sickness and stress itself.

By Knvul Sheikh

Today, there are more treatments than ever.

By David Dodge

Extending an olive branch can be healthy, but experts say it isn’t something people should feel pressured to do.

By Christina Caron

Burial remains from 800-2,000 years ago hint that the First Australians may have kept the continent’s famous canine species as pets.

By Franz Lidz

At a barbershop in Colorado, stylists and customers discussed a matter of social protocol.

By Matt Richtel and Theo Stroomer

Among Americans aged 60 to 74, only those with certain health conditions need to receive the shots, the agency concluded.

By Apoorva Mandavilli

After two strokes, the stand-up has recovered enough to make a new special. If anything, his health crises have sharpened his humor.

By Jason Zinoman

Senator Bernie Sanders of Vermont has called on a government watchdog to investigate. Here’s what you need to know.

By Alisha Haridasani Gupta

Cats are more social than they are often given credit for. Can you help yours access its inner dog?

By Emily Anthes

The blood thinner can raise the likelihood of gastrointestinal bleeding, especially in people over 60. Here’s what to know.

By Katie Mogg

Irene Taylor, director of the new documentary “I Am: Celine Dion,” talks about the decision to include a grueling scene of the pop star in crisis.

By Annie Aguiar

Public employees in West Virginia who took the drugs lost weight and were healthier, and some are despondent that the state is canceling a program to help pay for them.

By Oliver Whang

Airlines, restaurants and hotels are all making travel easier for people with sensitivities to foods like peanuts, wheat and milk, but it’s still critical to be your own advocate.

By Lisa McCarty

Transfusions have become an important part of veterinary medicine, but cat and dog blood is not always easy to come by.

By Emily Anthes

Experts weigh in on the most vexing issues and changes — and how to deal with them.

By Dana G. Smith

Scientists are studying how to keep the ovaries working longer — and potentially, prevent age-related diseases in the process.

By Alisha Haridasani Gupta and Dana G. Smith

Despite decades of research, the evidence for omega-3 supplements is murky.

By Alice Callahan