Memory loss, also referred to as amnesia, is an abnormal degree of forgetfulness / inability to remember events for a period of time, often due to various reasons like brain damage or disease, trauma.

Causes:
Medications like antidepressants, Antihistamines, Anti-anxiety medications, Muscle relaxants, Tranquilizers, Sleeping pills, Alcohol, Tobacco, or Drug use, Smoking ,Sleep deprivation, Depression and stress, Nutritional deficiency, Head injury & Stroke.

Symptoms:
Confusion Altered Mental Status and Difficulty Concentrating.