White House Sweats, and He’s the Cause

President Obama’s personal trainer, Cornell McClellan, has also been working with many aides.

Obesity Rates Keep Rising, Troubling Health Officials

Nine states, led by Mississippi at 34.4 percent, have rates reaching 30 percent or more, as opposed to only three states in 2007.

Personal Health: Skin Infections Can Spread Like Wildfire at the Gym

A new paper suggests steps to take to avoid skin infections at workout facilities.

Really?: The Claim: Exercise Can Worsen Chronic Heartburn

Can too much running induce acid reflux?

Personal Best: With This Rinse, Performance Improves

A carbohydrate solution that doesn’t even have to be swallowed gives athletes a boost, exercise scientists find.

Personal Best: After Heatstroke, When Is It Safe to Exercise?

Heatstroke, a potentially deadly consequence of exercising strenuously in the heat, remains poorly understood — misunderstood, some say.

Personal Best: Drink a Slushie Before Hot-Weather Workouts

New research suggests that a syrup-flavored ice slurry before a workout in hot conditions can improve endurance.