CrossFit Kids know squat (pull-up, too)

(Astrid Riecken / FOR THE WASHINGTON POST)

The kid version of the CrossFit strength and conditioning program is gaining popularity in the D.C. area.

Rockville gym caters to clients with disabilities

(Katherine Frey / THE WASHINGTON POST)

Owner Marc Sickel pairs physical and cognitive exercises to help kids with ADHD and other disorders.

Don’t mess with bike commuters

(Linda Davidson / Post)

Your huge response to my attempt to get to work on two wheels revealed a passion for this mode of transportation.

Does biking to work really work?

(Linda Davidson / The Washington Post)

Bike commuting works well if you live fairly close to your job. It’s another matter entirely if you live in the suburbs and work downtown.

Seven foods that get an unfair rap

(Mark Gail / THE WASHINGTON POST)

With all the hoopla about healthful eating, it’s hard to separate fact from fiction. Here’s the skinny about some so-called “bad” foods.

The Checkup

Jack Osbourne and MS

Jack Osbourne, the 26-year-old son of Ozzy and Sharon Osbourne, reveals this week in People magazine that he has been diagnosed with multiple sclerosis.

The Checkup

Pfizer want us to ‘Get Old’

Pfizer (in partnership with 10 health-care advocacy groups) is inviting people of all ages to share their attitudes toward and stories about aging.

The Checkup

CDC: Helmet laws save lives, money

In states that require all motorcycle riders to wear helmets, costs related to motorcycle accidents are dramatically lower than in states with less comprehensive helmet laws or no laws.

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Eat, Drink & Be Healthy

Nutrition and fitness resolutions for 2012

HANDOUT PHOTO: Picture Christine Gerbstadt, MD, RD, riding her bike. She's the author of 'Doctor’s Detox Diet The Ultimate Weight Loss Prescription.' ONE-TIME USE ONLY. For re-use, contact Christine Gerbstadt, 412-638-0000, crgerbstadtmd@aol.com

It’s not too early to start thinking about ways to make 2012 your most healthful year yet.

Me Minus 10, revisited

She made good on her pledge to lose 10 pounds before she turned 50. Now at 51, this nutrition columnist looks back.

Real-world holiday weight-control tips

HANDOUT: Sam Hardman

How three people who’ve shed a lot of weight keep the pounds off this time of year.

Read past Eat, Drink & Be Healthy columns

Health News

She wasn’t tired, but she couldn’t stop yawning. What was wrong with her?

MEDICAL MYSTERIES | Liisa Ecola was yawning as often as 200 times per day and squinting.

Medical Mysteries: Was crying caused by man’s severe depression?

Staten Island, N.Y.. - Feb.11: Richard Anderson and his wife Rosemarie in their Staten Island home.  Richard suffered a severe traumatic brain injury at 47 which developed into uncontrollable crying.  A new drug has helped treat  his disorder called pseudobulbar affect.   (Photo by Helayne Seidman/For The Washington Post)

His uncontrollable and inexplicable crying embarrassed him, deepening his social isolation.

Medical Mysteries: A baby’s seizures

Medical Mystery. ****ONE-TIME USE ONLY**** for Health 1/31/12

Days after a baby got a routine vaccine, she developed seizures. It took years to learn their cause.