Brain freezes always strike at the worst possible time. You're innocently enjoying a cold treat and—wham! A crippling headache ruins the next bite. This video from Mental Floss sheds some light on why we get them. "Ice cream headaches" may exist to regulate our body temperature. Experts speculate they're caused by the constriction and dilation of blood vessels, which occurs when something cold touches the roof of the mouth. Our brains interpret this as pain, and we're defenseless against the ensuing headache. If you want to speed up the healing process, the video suggests drinking some warm water—otherwise you (and your ice cream) will just have to wait it out.

READ THIS NEXT: Why Scratching an Itch Feels So Damn Good
 

Take on too much in the New Year?

We'll make crushing your goals a whole lot easier by sending you a healthyish idea you can do every day.
Sign up to get healthy ideas
via Facebook Messenger
 
CLOSE

Sign up for a daily healthyish text message

Status Available in the U.S. and Canada only. Clicking "SIGN UP" means you would like to receive text messages from Greatist. Msg & Data rate many apply. Text STOP to cancel or HELP for help.