By Mayo Clinic Staff. An X-ray is a quick, painless test that produces images of the structures inside your body â particularly your bones. X-ray beams pass through your body, and they are absorbed in different amounts depending on the density of the material they pass through.
Physical Causes. The most obvious reason for being tired and sleepy is lack of sleep. According to MayoClinic.com, the average adult needs between seven and eight hours of sleep every day. If you're sleeping less than that, adjusting your sleeping schedule might provide some relief.
Fatigue can be confused with tiredness. Everyone gets tired. In fact, it is an expected feeling after certain activities or at the end of the day. Usually, we know why we're tired and a good night's sleep will solve the problem.Fatigue is less precise, less cause-and-effect. Fatigue is a daily lack of energy; an unusual or excessive whole-body tiredness, not relieved by sleep.It can be acute (lasting a month or less) or chronic (lasting from 1 month to 6 months or longer). Fatigue can have a profound negative impact on a person's ability to function and quality of life.n fact, it is an expected feeling after certain activities or at the end of the day. Usually, we know why we're tired and a good night's sleep will solve the problem. Fatigue is less precise, less cause-and-effect. Fatigue is a daily lack of energy; an unusual or excessive whole-body tiredness, not relieved by sleep.