If women feel sleepy legs, also known as leg weakness, there are usually several causes as follows: 1. The most common factor is endocrine system factors, for example, in hypothyroidism, adrenocortical insufficiency, there will be symptoms of leg weakness and leg sleepiness. 2. In some ionic disorders, especially in hypokalemia, there will also be clinical symptoms of leg weakness and leg weakness due to low blood potassium. 3. In patients with anemia or poor nutritional status, there will also be symptoms and reactions of leg weakness and leg and foot sleepiness. 4. Some cardiogenic systems, such as coronary atherosclerotic heart disease, myocarditis, and insufficient blood supply to the heart, patients will also have clinical symptoms such as leg sleepiness, leg weakness, and numbness of the limbs.