I find it useful to think of those as just different kinds of people. In high school, a friend of mine had an exchange student. My friend's family were all nat

I find it useful to think of those as just different kinds of people. In high school, a friend of mine had an exchange student. My friend's family were all naturally thin. They were truly surprised that once a package of something sweet was open, the exchange student would return at regular intervals to have some until it was all gone. They weren't being tough or anything; they just didn't experience the cravings. I am like the exchange student. So as much as possible, I just don't keep that stuff around.