Healthy Gut and Aliens

I'm reading "Gut and Psychology Syndrome". Its an interesting book by Dr. Natasha Campbell-McBride MD about poor gut health and the many physical and psychological diseases associated with it. The book focuses mainly on the psychological diseases. The book offers a diet plan to restore gut health. Restoring the gut health will cure or reduce the symptoms of the diseases. Today Melissa McEwen has blogged about a paper on the Gut-brain-skin axis. The aliens are the bacteria that live in our guts. If we are healthy we have more bacteria in our guts than cells in our bodies.