Cardio equipment at the gym often displays a “fat burning zone,” which involves a relatively leisurely 50 to 60 percent of your maximum heart rate. But does staying in this lower-intensity range really burn more fat than higher-intensity exercise?

Some fitness gurus recommend drinking water constantly during exercise to “stay ahead of your thirst.” Find out why that advice is misguided and could even be harmful.

Frustrated that working out isn’t melting away those extra pounds? While exercise has been shown to help prevent weight gain, it may be less effective when it comes to weight loss. Our Healthy Skeptic explains why.

Some fitness gurus recommend working out first thing in the morning. While early workouts have their advantages, you may perform better at exercise later in the day. Our Healthy Skeptic explains why.

It’s become conventional wisdom that we all need to walk at least 10,000 steps a day. While that can be a good goal if it encourages you to move more, the number 10,000 is based more on marketing than on science. Find out how many steps you actually need.