4. They're scientifically engineered to make you crave them
Seriously, it's chemistry! As a food scientist explained in 2013, Doritos' appeal is multifold. First, there's the high concentration of fat -- when fatty snacks melt in your mouth, your brain thinks the calories have disappeared too, which delays feelings of fullness. Then there's the dust, which unleashes an intense flavor burst when you lick it off your fingers. You also can't forget the MSG, which enhances just about anything, and, well, there's like six more reasons, so go read them here.