Eating in a 6-hour window and fasting for 18 hours might help you live longer

Abstaining from food for 16 to 18 hours a day could be key to treating a variety of health conditions -- even if you've got to train yourself to push past the hunger.

A review of past animal and human studies in The New England Journal of Medicine suggests that intermittent fasting can reduce blood pressure, aid in weight loss and improve longevity.

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