There are predators around zebra’s day and night and so they are under constant threat of attack! Their lives must be stressful and full of anxiety.
But zebra’s don’t get ulcers because they only release their stress hormones in the event of an ACTUAL emergency. They live in the here and now and they don’t worry about the future. They don’t worry about what hasn’t happened yet! It is our wonderful human imagination that causes us to feel anxiety and not live in the moment. Our mind and body pay the price of that. Be More Zebra!
Why Zebras Don’t Get Ulcers: The Acclaimed Guide to Stress, Stress-Related Diseases, and Coping (©2004 Robert M. Sapolsky (P)2012 Tantor) https://www.amazon.co.uk/Why-Zebras-Dont-Ulcers-Revised/dp/0805073698