What are some reasons a person would be excessively tired all the time?

Answer by  YellowCup (1650)

Lots of things can make a person tired. Lack of sleep, illnesses, vitamin deficiencies, and just getting older. Some times taking a vitamin can help boost your energy levels.

Answer by  bubbyboy (9929)

Many conditions can cause chronic tiredness, from not-so-serious to very serious. You may have sleep apnea or you just might not be getting enough sleep. Other conditions are anemia, menopause,cancer, an autoimmune disease or not getting the right vitamins. If it lasts for more than a few weeks, see your doctor.

Answer by  powderpuff (11)

A person that has no energy could be suffering from an illness but most times people do not get the right kind of vitamins in their diet and/or they do not get enough exercise. A lot of times exercise is all that is needed to get re-energized.