Raw eggs, bacon, wine: Weird diet secrets of the world’s oldest people

Doctors attribute longevity to a combination of diet, genetics, and environment, but they are yet to discover any one single factor that guarantees a long life, or even, for that matter, an early death. Substantial evidence exists that certain vices like cigarettes, alcohol, and sugar-sweetened beverages are dangerous and have adverse health effects, but some of the world's oldest people consume them regularly and live into their 100s.