We’ve all had our paranoid parents scolding us after taking a shower. “Don’t go outside!” They say. “You’ll get a cold!!” But is that really true? What’s the real danger of a wet head? Read more to find out.

As a little-known fact, the cold is scientifically called the Rhinovirus. Yes, the common cold is a virus. A singular Rhinovirus is about 30 nanometers in diameter. But I bet that’s pretty hard to picture. Let me put it into perspective for you. Imagine a piece of paper. Just a normal, plain old sheet of computer paper. The thickness is 100,000 nanometers. So, yeah, the virus is pretty small. So how does this teeny-tiny Rhinovirus spread?

According to erkbiz.com, “The cold virus is passed from human-to-human in the air. It can also be picked up from surfaces.” Since the virus can float through the air hours after a person sneezes, the common cold travels pretty easily. If someone were to walk into that cloud of bacteria, that victim would almost automatically be infected. But what does this have to do with a wet head?

Actually, nothing. Nothing at all. Although wet hair can potentially lower internal body temperature, viruses don’t enter a host through an unsteady temperature. However, according to health.com, “…cold air is dry, and viruses thrive in dry air, outdoors and in. Also, dry air can suck the moisture out of the lining of the nose, making it more susceptible to infection from cold viruses.” Although the winter may take a toll on most of our immune systems, the wet head is not the worst thing in the world. 

So the next time your parental unit tells you to stay inside after a shower, let them know that this myth is: