It's not that we simply get old, and memory starts to go, and sleep starts to deteriorate. But those two things actually are significantly interrelated.

If you were not to set an alarm clock, would you sleep past it? If the answer is yes, then there is clearly more sleep that is needed.

I think sleep is probably the neglected stepsister in the health conversation today. I think we've done a good job regarding physical activity and diet, but sleep has remained out there in the cold, and that's surprising to me.

Many business leaders still believe that time on-task equates to productivity. Even in the industrial era of rote factory work, this was untrue. It is a misguided fallacy, and an expensive one, too. Every key facet required for business success will fail when sleep becomes short within an organisation.

The ideas and practices of Franz Anton Mesmer, an 18th-century Australian healer, had spread to the United States and, by the 1840s, held the country in thrall. Mesmer proposed that everything in the universe, including the human body, was governed by a 'magnetic fluid' that could become imbalanced, causing illness.

I was born on the other side of the tracks, in public housing in Brooklyn, New York. My dad never made more than $20,000 a year, and I grew up in a family that lost health insurance. So I was scarred at a young age with understanding what it was like to watch my parents lose access to the American dream.

A job should bring enough for a worker and family to live on, but after that, self-realization, the exercise of one's gifts and talents, is what truly matters.

I sleep with the drapes open to rise with the sun. I think that's a healthy thing to do because even if you don't like to wake up early, your body does adjust.