Another advantage of avoiding sodas is that you will avoid the caffeine that is in many of them. Caffeine is a weak diuretic that causes calcium loss via the kidneys.

It doesn't do a lot of good for your health to move from red meat to white meat, but it gets you further down the road towards making more substantial changes later.

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.

Not only are the studies themselves often lacking even face value, but they also drain badly needed funds away from patient care needs.

The important thing is that while heroin and cocaine and tobacco and every drug and junk food cause dopamine release, there are healthier ways that you can put this into your life. And the three big ones are intimacy ... physical activity ... and the third thing is music.

Dogs have a sense of smell much greater than ours and they're much faster than we are. We have fairly dull senses, fairly slow locomotion. In our Olympic trials, we celebrate speeds that would be an embarrassment to a bird or a dog or another animal.

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.