Last week I picked up the theme of hunger with an intention to visit all the angles of the instinct – the physiology behind it first – but also the outer reaches of hunger’s emotional and social sway. The fact is, I can’t think of an instinct (other than sex) that influences our evolution more or perhaps a more complex motivation. It’s one of those areas in which you can’t always separate biology from emotion. (The more you learn about the human animal, I think, the more apparent the melding of these two fields/forces becomes.) Enter cravings. Beyond the general experience of hunger (Feed me now!) are the urges toward particular foods (Need THIS now!). What exactly goes on here? What’s the real impetus behind our cravings, and what’s the ultimate pushback we can offer on the way to derailment?