Gretchen Reynolds

Myth #3: You need to focus on your core

First off, many athletes erroneously cling to the notion that six-pack abs are a sure sign of a strong core. More to the point, it’s unclear whether core-specific training benefits athletic...

The 10 Biggest Fitness Myths

Do you stretch before going on a run? What about ­after? Do you guzzle electrolytes to stave off muscle cramps? Are you thinking about throwing your running shoes in the trash to go barefoot? Does...

Myth #5: Popping ibuprofen prevents soreness

Don’t take ibuprofen unless you have a legitimate injury. Muscle pain is part of the body’s training response, and nothing has been shown to effectively ward it off.

Myth #8: Long and slow burns more calories

Start sprinkling high-speed intervals into your slow runs. Do hill repeats on your bike. Try to maintain a heart rate at or above 80 percent of your max for about 45 minutes several times a week.

Heal Thyself

Some believe a concentrated injection of your own blood can help heal sports injuries. Does science agree?

Brave New Body

Vascular implants, bionic eyes: a survey of the cutting-edge techniques rebooting human performance.

Brave New Body

Vascular implants, bionic eyes: a survey of the cutting-edge techniques rebooting human performance.

Brave New Body

Vascular implants, bionic eyes: a survey of the cutting-edge techniques rebooting human performance.

The Stand

The caffeine-free, fully cleansed, take-your-nap, buff-as-hell guide to a whole new you.

31 Ways to Better Health

The caffeine-free, fully cleansed, take-your-nap, buff-as-hell guide to a whole new you.

Biting Back

An infamous mosquito-borne illness once again rears its ugly head

Talk Dirty to Me

Alison Dunlap's mud-splattered affair with the sport of cyclocross