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.
Feeling sleepy and tired all the time can be a sign of fatigue. Tiredness and fatigue can manifest in a number of ways. According to eMedicineHealth, fatigue can cause weakness, dizziness, tiredness, shortness of breath and even palpitations.
The essential component of red blood cells is hemoglobin, which can hold oxygen so the cells can then transport around the body. This process is what gives the body energy, which explains why people who suffer from anemia â low count red blood cells â often feel tired and sleepy.