Food is no longer sacred to us: in becoming too efficient we've changed its nature.

Before you reach for the saltshaker, consider swapping your snacks for a healthier option.

If I make your workplace conducive to walking at lunch, or working out at some time during the day, or I get people to use the stairs more by creating incentives to do such, then people will start doing it naturally.

Medicine is a jealous mistress. It demands all your time.

There are really two things that drive New Year's resolution success. Number one is telling somebody about your goal. Chances are, they'll either join you in pursuing it or at least support you. Number two is to be concrete and specific. You don't want a goal like "becoming a better person," because there's no objective way to judge that. It's got to be something like "I'm going to call my mother once a week." Or "I'm going to cut my body mass index to 25." It can't be fudgeable.

People change based on what they feel, not what they know. Which means that understanding all that advice doesn't matter if there's no deep, profound, visceral awareness of why it's important.

Biology always beats will power.