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

Health is wholeness--wholeness in its most profound sense, with nothing left out and everything in just the right order to manifest the mystery of balance. Far from being simply the absence of disease, health is a dynamic and harmonious equilibrium of all the elements and forces making up and surrounding a human being.

Pay attention to your body. The point is everybody is different. You have to figure out what works for you.

In my experience, the more people have, the less likely they are to be contented. Indeed, there is abundant evidence that depression is a 'disease of affluence', a disorder of modern life in the industrialized world.

Improper breathing is a common cause of ill health.

If the only way you could read an email was to run a mile first, the urge would quickly die. Human beings constantly do subconscious effort/reward calculations. Tapping a screen is the easiest of physical tasks.

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.