*Why should you use a stand-up desk rather than sitting in an office chair?
*Why should you go very easy on sugar, grains and dairy - and get at least half of your calories from fat?
*Why should you swim in cold water, and sit in a sauna, as often as you can?
*Why did the dietary and lifestyle prescriptions of the Bible (and even more so the Qur'an) make sense for our ancestors - and in many cases for us even today?
*Why is fasting so good for you?
*How can electric lights be bad for you?
Listen and learn!