Sleep is the most important time of day, but it’s also when you sweat the most. If you’re over-exercising at night, your body will expend more energy than usual and there will be less blood flow to your skin. This can cause excessive sweating during sleep. “To prevent this problem, change what you do before bed,” says Dr. Madden. “Do easy activities first so that they’ll tire you out.” Also consider sleeping with a fan on to keep yourself cool throughout the night (but don’t use it directly on your face). And if nothing else works, try dabbing some dry powder around your armpits or chest to absorb excess moisture while asleep.
How often should I wash my sheets?