What is the longest nerve in the body? Of course, it is cranial nerve X called the vagus nerve. The vagus nerve carries impulses from the parasympathetic nervous system or the "rest and digest" part of our nerve pathways.   Can you increase the activity of the vagus nerve to get better "rest and digest" activity? YES!   This week, Dr. Kahn discusses over 20 ways to activate your vagus nerve and ends with the neuvanalife.com Xen device (discount code Kahn10) which he has been using for over a month and is loving in terms of the results.