It is better to lose health like a spendthrift than to waste it like a miser.

Checking your telomere length is a bit like weighing yourself: you get this single number which depends on a lot of factors. Telomere length gives a sense of your underlying health.

Sleep is the Swiss army knife of health. When sleep is deficient, there is sickness and disease. And when sleep is abundant, there is vitality and health.

The joy is that we can take back our bodies, reclaim our health, and restore ourselves to balance. We can take power over what and how we eat. We can rejuvenate and recharge ourselves, bringing healing to the wounds we carry inside us, and bringing to fuller life the wonderful person that each of us can be.

Burnout is nature's way of telling you, you've been going through the motions your soul has departed; you're a zombie, a member of the walking dead, a sleepwalker. False optimism is like administrating stimulants to an exhausted nervous system.

When we think of the major threats to our national security, the first to come to mind are nuclear proliferation, rogue states and global terrorism. But another kind of threat lurks beyond our shores, one from nature, not humans - an avian flu pandemic.