Does More Sweat Mean You Burn More Calories? Surprising Sweat Myths

Learn the surprising truth about summer workouts and which sweat myths you can ditch.

True or False: You Burn More Calories During Hot-Weather Workouts?

True. Your heart needs to work harder to both keep your muscles well oxygenated during cardio and to send extra blood to the surface of your skin to keep your body temperature safe. Unfortunately, the calorie numbers are pretty low, so don't think you've earned an ice cream sundae! Think more like one bite of chocolate.

True or False: You Sweat All the Time?

True. You are always releasing moisture from your skin to help regulate body temperature, although usually not enough to be noticed. And this is taking place over almost the entire surface area of your body.

RELATED: 25 Fat-Burning Workouts for Summer

True or False: Sunblock Makes it Harder to Sweat?

False. Don't let sweat myths like these keep you from being sun safe. "Sunscreen does not affect the sweating mechanism, which is your body's way of cooling itself," says dermatologist Brooke Jackson, M.D., of the Skin Wellness Center of Chicago. Please note that no sunblock is truly "waterproof or sweatproof" so make sure you reapply every two hours.