When you see in places like Africa and parts of Asia abject poverty, hungry children and malnutrition around you, and you look at yourself as being people who have well being and comforts, I think it takes a very insensitive, tough person not to feel they need to do something.

With age comes the understanding and appreciation of your most important asset, your health.

I now wear a Jawbone. This is a bracelet that keeps track of how I sleep, move and eat - transmitting that information to the cloud. It allows me to track and maintain my health much better.

Rest is so necessary for the health of our minds and bodies, and often so difficult to achieve due to the many demands placed on us. But rest is also essential for our spiritual health, so that we can hear God's voice and understand what he asks of us.

I am really excited about the possibility of data also, to improve health. Imagine you had the ability to search people's medical records in the US. I imagine that would save 10,000 lives in the first year.

My health and my family are the core of my being.