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.
If youâve tried to get more sleep, reduce stress and change your lifestyleâ but youâre still relentlessly tired â your fatigue deserves to be taken seriously. Fatigue tends to snowball, gradually worsening, until you feel like a hamster stuck on an exercise wheel â exhausted and losing steam but not getting anywhere.