According to Cooper, bacteria make up approximately 90 percent of the cells in our bodies. He believes that we focus too much on ourselves and not enough on this so-called microbiome.

“We brush our teeth and we floss, and we think that we’ve got good oral hygiene. But [we're] completely failing to deal with the underlying problem,” he says. “Ten years from now, I think we’re going to find that the whole microbiome is a key part of what you get monitored for and treated for.”

As for right now, Cooper suggests that one way to help return your microbiome to a healthier, more balanced state might be to cut out all of those processed carbs and start eating like our ancestors.

via Ancient Chompers Were Healthier Than Ours : Shots – Health News : NPR.