Functional GI disorders (FGIDs) The gut-brain axis Early life events Future directions 1 min read Save (for later) Dr. Peter L. Lu, MD, MS This content is for registered users only. Registration is free and reserved for healthcare professionals. Connect with Facebook Connect with Google Connect with LinkedIn REGISTER LOGIN Email address Enter your Wyeth Nutrition Science Center Middle East username. Password Enter the password that accompanies your username. Keep me signed in Forgot your password? Reset it.