I am always struck by how difficult it is for people to see how much cruelty they are bringing not only upon animals but upon themselves and their loved ones and other people, how much we are screwing up the planet, how much we are hurting our own health, how hard it is to change all that, how eager people are to make a buck at everybody else's expense - all those things are discouraging.

It's much better to say, "If the herd is running, I'm running with those guys." And humans have herd mentality.

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.

If we studied human beings which can include human genes, human blood samples, and human behavior, then you can leave the animals out of the labs and you can leave them off your plate.

I thought - being a musician doesn't help your medical credibility really. Although I started to rethink that when I learned that Albert Einstein was quite a violinist and in fact would perform a lot with symphonies. So if it's good enough for Albert, it's good enough for me.

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.

Meat consumption is just as dangerous to public health as tobacco use... It's time we looked into holding the meat producers and fast-food outlets legally accountable.