In my own life, I decided to leave meat off my plate in medical school, but was a bit slow to realise that dairy products and eggs are not health foods either.

Since I first went to India twenty some years ago, there's been a palpable change. There's now pizza everywhere, meat is much more popular than it's ever been. Vegetarianism is "that quaint thing our parents did."

I don't approve of the use of animals for any purpose that involves touching them - caging them.

I'm thinking of people in rural Japan and China, where McDonald's hasn't yet arrived. These are the thinnest, healthiest, longest-lived people with the least risk of cardiovascular disease and diabetes.

If a dog happens to catch a rabbit or another animal, it can very easily remove the hide. If a cat catches a squirrel, they have no trouble with that. But if a person does that, they will work all day and all night to get the skin off of an animal, because they don't have long canine teeth anymore.

The beef industry has contributed to more American deaths than all the wars of this century, all natural disasters, and all automobile accidents combined.

Music is the exact opposite of anxiety. It's there to relieve anxiety, to calm you down. And to just get the noise out of your biological system. So that, it's not going to make your immune system stronger than normal. What it does, in my view, is allow your immune system to work with the full force of normality.