IE 11 is not supported. For an optimal experience visit our site on another browser.

Your body’s secrets revealed: Why do some people sneeze looking at the sun?

04:55

Your body is full of mysteries, but most common quirks – like the way some people sneeze when they look at the sun or the contagiousness of yawning – have perfectly reasonable scientific explanations. Dr. Jennifer Caudle sits down with Megyn Kelly to explain some of them.