Mom always warned you you'd get sick if you didn't bundle up before heading out in cold weather. Her advice wasn't exactly horrible, since you'll certainly be more comfortable and protected from frostbite. But cold by itself doesn't make you more likely to get sick, according to The Weather Channel. Most experts think we're more likely to get sick in colder months, but that's because we're all cooped up together, exchanging germs. Cold weather also dries out your nasal passages, reducing their ability to filter out infections. Despite evidence to the contrary, moms will probably keep warning their kids to bundle up. It's what they do.
You lose 90 percent of your body heat through your head.
Of all your body parts, your head is more likely to be exposed in cold weather. But that doesn't mean the myth about losing 90 percent of your body heat through your head is true, according to Business Insider. Sure, wearing a hat in cold weather will help you stay warm, but that's just because you're covering an exposed body part, not because there's anything special about your head. You could cover up any other exposed body part and also feel warmer.
You don't need sunscreen in the winter.
If you think you only need sunscreen in hotter weather, you've probably packed your lotion away by the time winter comes around. But even when the weather's overcast in the winter, up to 80 percent of the sun's rays can still penetrate the clouds, according to Reader's digest.
UVA rays are always present - even in winter - and they can damage the deeper layers of your skin, increasing your risk for skin cancer and causing premature aging of your skin. And if you're planning a ski trip, you should be even more careful. UV radiation increases with elevation, and snow reflects and intensifies sunlight. So whatever the season, wearing sunscreen with at least a 30 SPF is the safest way to go.
Feed a cold, starve a fever.
The origin of this myth may be rooted in antiquated beliefs about colds and fevers, according to CNN. It was once believed that your body literally became colder if you had a cold, so it needed to be "warmed up" with food. Fever was thought to need "cooling down" by not eating.
In reality, you need to eat whether you have a cold or a fever. Good, nutritious foods are important, but it's OK if your illness suppresses your appetite a little. Staying hydrated is most important, especially if you have a fever. You may need to replenish electrolytes, so sports drinks can be a good choice. Good ol' chicken soup will keep you hydrated while also helping to clear your nasal passages.
The flu shot can give you the flu.
This isn't true, according to the Centers for Disease Control and Protection (CDC). Flu shots are made with either an inactive form of the virus or no flu virus at all. Neither type can give you the flu. You may have a sore arm after getting a flu shot and some people report having a low-grade fever and aches for a day or two, but it's not the flu.
On the other hand, you may still get the flu even if you've had a flu shot, but the odds of getting it are much lower and, if you do get the flu, the symptoms will likely be less severe.