Long intervals of hard work, physical exertion, and unhealthy lifestyle (poor sleep pattern, alcoholism, and drug addiction) are noted as the commonly known causes of tiredness or fatigue. A lay man could feel tired due to a recently suffered bereavement or upset, personal or family issues, emotional disturbance, work pressure, low spirits, confusion, etc.
Lack of a “good night” sleep is one of the major reasons which kindles tiredness in the body. An underlying medical problem such as anemia or viral disease such as glandular fever can extract huge amount of energy from the body, leaving the person tired for weeks. Common factors which contribute to tiredness are lack of regular exercise, unhealthy or insufficient diet, poor sexual lifestyle (frequent masturbation, unnatural sex), etc.
