Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Health Tip: How to Live to Be 100
(HealthDayNews) -- What does it take to live to the age of 100?
According to the journal Nippon Ronen Igakkai Zasshi, the Japanese Journal of Geriatrics, a study of 4,152 Japanese centenarians came up with these rules:
Eat lots of protein
Keep calories down
Get enough sleep
Live in an area with excellent medical facilities.