Fatigue is a normal physiological response. When the body becomes temporarily tired after strenuous activity or stress, it can recover within a short period of time with proper rest. However, there are some conditions that make people tired easily; for example, chronic diseases such as high blood pressure, high blood cholesterol, and high blood sugar levels, chronic kidney failure, heart failure, liver cirrhosis, chronic obstructive pulmonary disease, and cancer.
However, some people without chronic diseases continue to have unexplained fatigue that isn’t relieved by getting more sleep or rest. Some of these cases become so severe that it affects their daily activities.
