I have never earned one penny from any pharmaceutical company. I will never accept one penny from them either. Ever.

I started to write about science and medicine at the Washington Post, in the early days of the AIDS epidemic.

Your dollar cheeseburger isn't a dollar if you factor in what it's going to cost in health care.

Daily vitamins are of no value.

Flu is easily transmitted, so if you are working with sick people - who are most at risk for getting seriously ill - you ought to be vaccinated. I am not really equipped to say whether it should be the law or not.

Be sceptical, ask questions, demand proof. Demand evidence. Don't take anything for granted. But here's the thing: When you get proof, you need to accept the proof. And we're not that good at doing that.

All the food we eat - every grain of rice and kernel of corn - has been genetically modified. None of it was here before mankind learned to cultivate crops. The question isnt whether our food has been modified, but how.