These studies illustrate that the normal urination of asymptomatic people varies widely with fluid intake, age, gender, and race. Nevertheless, the fact that 95% of femal and male subjects respectively voided fewer than 13 times and 12 times is applicable to this answering.
1 Medical causes â unrelenting exhaustion may be a sign of an underlying illness, such as a thyroid disorder, heart disease or diabetes. 2  Lifestyle-related causes â alcohol or drugs or lack of regular exercise can lead to feelings of fatigue.  Workplace-related causes â workplace stress can lead to feelings of fatigue.
Causes. Because research in this area is limited, we arenât certain what causes fatigue, but there are several possible causes. Medical conditions a survivor has, such as heart disease, diabetes, respiratory disease, anemia, pre-stroke fatigue or migraines, can contribute to fatigue.