My Brain's Overreaction to Cold DrinksWhy enjoying a slushie can cause a splitting headache.

From the show

Oh, god... really?

Discover the bizarre reason behind that sudden, sharp pain you get from eating ice cream too fast. It's a built-in defense mechanism that involves a rapid change in blood vessel size near sensitive nerves in your head. This intense headache is your body's over-the-top reaction to a sudden temperature drop in your mouth, a protective reflex that feels more like a punishment for enjoying a cold treat.