If I had to limit my advice on healthier living to just one tip, it would be simply to learn how to breathe correctly.

Drugs don't have spiritual potential, human beings have spiritual potential. And it may be that we need techniques to move us in that direction, and the use of psychoactive drugs clearly is one path that has helped many people.

The usual justification for eating extra meals is that it keeps the metabolism "revved up" so that weight loss is easier. There is, however, very little hard evidence that supports this idea, and a fair amount that disputes it.

To be clear, I worry as much about the impact of the Internet as anyone else. I worry about shortening attention spans, the physical cost of sedentary "surfing" and the potential for coarsening discourse as millions of web pages compete for attention by appealing to our base instincts.

It's rare - too rare, I have to say - for botanists to become doctors.

Most disease is lifestyle related and preventable

The best way to detoxify is to stop putting toxic things into the body and depend upon it's own mechanisms.