This document lists various physical and psychological symptoms that can result from stress, including chest pains, backaches, urinary issues, muscle spasms, memory loss, panic attacks, digestive problems, insomnia, headaches, swallowing difficulties, nausea, neck pain, fatigue, dizziness, and several conditions like ulcers, IBS, hyperventilation, asthma, arthritis, and skin disorders.
It then discusses the three stages of the body's stress response - the warning stage with noticeable symptoms, the adaptation stage where symptoms disappear, and the exhaustion stage which can lead to weight gain, impaired immune system, depression, anxiety and lack of focus. It outlines how the brain's reptilian region activates the fight or flight