Sitting around in a wet swimsuit or sweaty clothes
When you don’t shed your workout clothes or suit soon after you exert yourself, the combo of moisture and bacteria can lead to a rash, or infected hair follicles. There’s no rule about how soon to change. (If you’re sitting in the sun, a wet suit may dry quickly.) Aim to change out of anything wet as soon as is realistic.
Drinking alcohol outdoors on a hot, sunny day
Several things can happen when you consume alcohol in the heat. For starters, you’re more prone to sunburn. Your body metabolizes alcohol into a compound that causes the skin to be more sun-sensitive. And when you’re drinking, you tend to be less vigilant about reapplying sunscreen. You’ll also become impaired much faster than usual because alcohol’s effects, including dehydration and overheating, are heightened by hot temperatures.
