3a) Pathophysiology Discussion Insomnia is a sleep disorder that, according to Ali et al. (2020), is caused by environmental

3a) Pathophysiology Discussion Insomnia is a sleep disorder that, according to Ali et al. (2020), is caused by environmental, genetic, psychological, and behavioral factors. The listed factors lead to hyperarousal, which makes a person have sleep difficulties. When the problem is caused by short-term factors like medications, noise, temperature, and other factors like a new job and school environment, Ali et al. (2020) state that it is classified as acute insomnia. Chronic ones are caused by anti-hypertensives, depression, and medical conditions like thyroid disease. 3b) 3 Differential Diagnosis Discussion and the Pathophysiology and reason they are excluded