Question
A 23-year-old woman reported that she feels extremely drowsy every day, requiring short naps in the morning and afternoon. Despite not having any apparent health issues and maintaining a regular schedule, she is still troubled by her drowsiness. What could be the possible causes of this condition?
Answer
Fatigue and weakness are common symptoms of various heart conditions. Heart disease may lead to poor blood circulation, causing metabolic waste products (such as lactic acid) to accumulate in tissues, stimulating nerve endings and resulting in a feeling of fatigue. This fatigue can range from mild to severe, with mild cases often going unnoticed while severe cases can impact daily life. However, fatigue caused by heart disease does not have specific characteristics and can be difficult to differentiate from fatigue caused by other diseases. In addition to fatigue, patients may also experience symptoms such as shortness of breath.