"A person may be depressed if, for more than two weeks, he or she felt sad, down or miserable most of the time or lost pleasure in usual activities (beyondblue.org)." ... "Depression can affect the immune system, making it harder for the body to fight infection (webmd.com)." ... It can be said that insomnia is a main culprit for for these increases or risks, because of the lack of sleep the body doesn't function effectively and therefore weakens the immune system. ...

• Word Count: 897
• Approx Pages: 4
• Grade Level: Undergraduate