Are there any proven benefits to fasting?

You probably know that too many calories aren't good for your waistline, but as it turns out, they aren't good for your brain either.

According to research conducted by Johns Hopkins neuroscientist Mark Mattson and others, cutting your energy intake by fasting several days a week might help your brain ward off neurodegenerative diseases like Alzheimer's and Parkinson's while at the same time improving memory and mood.

Read the full story in Johns Hopkins Health Review.