Tongue Twisters

If the pucker factor of lemon juice, vinegar, or Greek yogurt just makes you wince, or if the prickly sensation of bitterness on the sides and back of your tongue makes your nose scrunch and your taste buds recoil, you’re far from alone. Turns out that while we’re genetically predisposed to love sweet foods, nature probably warned humans off bitter and sour tastes back in the hunter-gatherer era, when the bitterness of a berry, leaf, or shrub may have signaled its unfitness for human