What’s a concussion? How many is too many? What if I hit my head on a door?
Experts say there’s no “magic number.” But you should avoid racking up repetitive brain injuries, which could lead to long-term health problems.By Teddy Amenabar
Women said coronavirus shots affect periods. New study shows they’re right.
A coronavirus vaccination can change the timing of when you get your period, according to new research. For most people in the study, the effect was temporary.By Amanda Morris
Ask a Doctor: Why do I get sleepy in the afternoon after eating lunch?
Feeling sleepy after lunch is very common and usually isn't a reason for concern. The most likely cause: your circadian rhythm.By Lydia Kang, MD
Have you been taking pills wrong? Here’s what science says.
Researchers found that taking a pill while lying on your right side, rather than your left, shortens the time it takes for the drug to be absorbed.By Teddy Amenabar and Aaron Steckelberg
When should I get the omicron booster? Will I need covid shots forever?
The omicron shots are here. Here's what to know about when to get the bivalent boosters and how soon they'll work.By Teddy Amenabar
Ask a Doctor: Why are so many viruses popping up again?
Reports of monkeypox, Ebola, polio and the ongoing covid-19 pandemic are unnerving but not surprising.By Jay K. Varma, MD
Is it safe to take a baby to a chiropractor? Here’s what experts say.
Chiropractors say treatments for infants are safe and gentle. Some physicians say the proliferation of infant chiropractic care on social media is concerning.By Teddy Amenabar
How sitting all day can cause health problems — even if you exercise
Working out for 30 minutes every day “might not be enough” to counter the health issues created by prolonged sitting, said the study author.By Gretchen Reynolds
A congressman wasn’t allowed on a flight — because of his wheelchair
Officials say the lithium-ion battery that powers wheelchairs is safe. But passengers like Rep. Jim Langevin can be stranded when airline workers don't know the rules.By Amanda Morris
Ask a Doctor: How much vitamin D do I need? Should I take a supplement?
Vitamin D has been touted as a miracle supplement, but the vast majority of U.S. adults are already getting enough from their diet and the sun.By JoAnn E. Manson, MD
Here’s what muscle memory really means, and how to use it
It turns out that muscle memory is not just in the mind. It's in the muscle fibers, too.By Stacey Colino
Why adult acne is on the rise and what to do about it
Adult acne has always existed, but masks and stress are making it worse.By Stacey Colino
‘Body doubling,’ an ADHD productivity tool, is flourishing online
People searching for a way to stay motivated while doing chores or working from home are turning to virtual co-working spaces and live streams for “body doubling.”By Kelsey Ables
Menstrual leave: Why some companies are offering time off for periods
Menstrual leave policies are designed to eliminate the taboo around periods and recognize the physical discomforts that menstruation can cause.By Angela Haupt
Growing evidence links air pollution exposure and covid-19 risks
More studies conducted during the pandemic have found links between air pollution exposure and the chances of contracting the coronavirus, developing a severe infection or dying.By Allyson Chiu
Waist trainers: A waste of money and potentially harmful
Waist trainers can restrict your breathing, cause digestive issues and perhaps even damage your internal organs.By Angela Haupt