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.
The feeling of always being tired is very subtle and not quickly identified by a person just developing heart disease. In fact, if no other obvious symptoms are exhibited, the affected person will dismiss this heart disease symptom by thinking, I am working too hard. I need some time off.. This is just bad thinking. If you are tired all the time it is because you have become de-conditioned and your heart cannot stand the strain.