What's Causing My Teeth to Frozen?

Proteins TRPC5 are great at sending cold feelings throughout your body. When I bite into a spoonful of my homemade guy's cream, these proteins activate and then send that cold sensation from the outside of my tooth all the way down to the pulpy center where my nerve cells tell my brain that I'm chopping into something very cold. In fact, those scientists from Germany were even able to deactivate these proteins in some test mice in their lab. Once these proteins were turned off, these mice had no problem whatsoever eating cold foods. Except Doritos.