It all melts the brain

You've all seen the beer belly, that incredibly large protuberance on heavy drinking men. And sometimes women. Well, apparently, that increase in body mass index (BMI) can lead to worse cognitive function. And of course, those of us that are fat and smoke have the worst brains of all.

"In previous studies, we have shown that alcoholics who smoke cigarettes have greater brain injury than nonsmoking alcoholics. This new study suggests that a high BMI, independent of drinking and smoking, is also associated with brain injury."

Your brain is such a delicate little thing. Introducing random chemicals and even changing your body's levels of cholesterols and such changes the way your brain functions. The human body is just amazing.