Isaac Anderson FollowSubscribeBooks by Isaac AndersonThe Polyvagal Theory & the Vagus Nerve: A Self-Help Guide to Understanding the Nervous System. Ease Anxiety, Depression, Stress & PTSD by Activating the Vagus Nerve - Isaac Anderson, Rudolph GiulianiIsaac Anderson, Rudolph GiulianiRead by Andrew BaldwinSelf-helpMagnet