People have been fasting for years to lose weight, but what if we told you that the longer you fast, the longer you can live?

The idea may be hard to stomach, but a new study by the National Institute on Aging (NIA) suggests that intermittent fasting could be the key to longevity. 

A group of scientists from the NIA, the University of Wisconsin-Madison and the Pennington Biomedical Research Center in Louisiana found that increasing time between meals improved the overall health of male mice and lengthened their lives compared to mice that ate more frequently. Perhaps even more surprisingly, the health benefits were seen regardless of what the mice ate or how many calories they consumed.