This isn't new research, as I've known about calorie restricters for a long time. In essence, voluntarily reducing your calorie intake in linked to a longer lifespan. However, the reasoning behind it surprised me.
"Scientists aren't sure exactly why calorie restriction slows aging. But they're on the verge of a firm understanding. In a nutshell, it is thought to lower metabolic rate
and cause the body to generate fewer damaging "free radicals."
Everyone is always worried about their metabolism falling, but this research is saying a lower metabolism results in a longer life...