The most common objection that I hear to walking as exercise is that it's too easy, that only sweaty, strenuous activity offers real benefits. But there is abundant evidence that regular, brisk walking is associated with better health, including lower blood pressure, better moods and improved cholesterol ratios.
Andrew WeilFor many in the modern world, carving out time for both traditional seated meditation and exercise has become close to impossible.
Andrew WeilDrugs 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.
Andrew Weil