Diet and Fitness

HowStuffWorks offers guidance for developing an exercise routine that will help you get in shape and stay healthy. Learn about diet and fitness and get tips from professional trainers.


It turns out that people who are both healthy and obese are rarer than you might think.

Compared to sports drinks, bananas might be tops at helping us power through workouts and heal faster on the other end.

Why is it so hard to keep weight off after losing it? One study suggests it's because your body wants you to put it back on.

New research shows going gluten free may not be all it's cracked up to be.

A quick workout before or between flights would be a nice way to get energized, especially if there was a gym conveniently located at your terminal. So why aren't there more gyms inside U.S. airports?

Hot yoga may not be as beneficial as once thought, a new study suggests.

Workout trends are changing, as younger people are less into the gender divide of classes for women and weightlifting for men.

There are nude bike rides, naked yoga sessions and even the occasional bare-it-all Crossfit sesh. Would our bodies be more efficient without clothes getting in the way?

A study showed that weight loss messages are more likely to work when both are actions ("eat more veggies," "do more exercise") rather than if one is an action and the other is an inaction ("eat more veggies," "eat less fat").

It's a popular dieting trend but in this first long-term study, researchers found mixed results on the effectiveness of alternate-day fasting.

Worrying can be detrimental to a person's health, but — in the right amounts — it can also promote well-being.

Take the stairs instead of the elevator on your way to the office, and you might not need that morning cup of joe for energy. (You'll probably still want it, though.)

Emotions can get the best of you when you're in corpse pose. The reason why is somewhat of a mystery, but science and yogis have some pretty good guesses.

Links between inactivity and heart disease, diabetes, stroke and cancer are still solid though.

Biologists in San Diego have pinpointed a hormone in roundworms that could one day be the key to fat-burning drugs.

Don't quit! You can accomplish your workout resolutions by taking some simple steps psychologists recommend.

It seems intuitive: Getting ripped at the gym increases your strength, right? Some researchers are challenging the link between muscle size and muscle strength.

Being upset isn't good for heart health. But being upset and working out like a fiend can triple your risk of heart attack.

A new Johns Hopkins study finds that cutting the fat and loading up on fruits and veggies with the DASH diet may help keep away one painful, nagging malady.

For the first time, a group of researchers tried to answer that question — and got a staggering figure.

The idea that you could hold a powerful stance and get a burst of positive brain chemicals is certainly alluring. But is the science on this claim solid?

Do you eat all day long, or do you restrict your eating to a certain time? That latter approach, called time-restricted feeding, could significantly affect human health.

You're proud of yourself for finally sticking with an exercise routine. But sadly, the needle on the scale doesn't move. Exercise doesn't have as much to do with weight loss as you'd think.

It's eating a limited number of healthy foods that leads to weight loss.

Your expanding waistline might not just be due to what you eat. A lot of factors may determine what numbers pop up on your scale, from hormones to diseases to the meds you're taking.