Frequently, problems with thyroid and fatigue leave people feeling tired all day with difficulty sleeping at night. Their fatigue is often better when their temperatures are higher (perhaps in the late morning) and worse when their temperatures are lower (perhaps in the late afternoon).requently, problems with thyroid and fatigue leave people feeling tired all day with difficulty sleeping at night. Their fatigue is often better when their temperatures are higher (perhaps in the late morning) and worse when their temperatures are lower (perhaps in the late afternoon).
Most modern adults breathe much faster (about 15-20 breaths per minute) than their normal breathing frequency. The respiratory rates in the sick persons are usually higher, generally about 20 breaths/min or more.
Maximum volume is seldom reached, but is generally about 50 percent of the vital capacity per breath. A normal adult at rest breathes about 7.5 liters of oxygen every minute. During strenuous exercise, the amount increases to 120 liters per minute.he normal vital capacity is 4.8 liters in males and 3.2 liters in females. However, even after maximal exhalation, some air must remain in the lungs for inflation. This is known as residual volume, about 1 to 1.2 liters.