Testosterone plays a vital role in how your body creates energy; therefore, low testosterone can make you feel tired.
Among the many processes that testosterone is necessary for, this important male hormone plays a vital role in metabolism, or the way that your body produces energy for your cells from the foods that you eat.
Testosterone also helps to regulate mood and sleep, which is another reason why low testosterone can make you tired. Testosterone is also instrumental in the creation of red blood cells. Low testosterone can lead to a decrease in the production of healthy red blood cells, which can cause anemia which can also make you tired.
As you can see, low testosterone can affect your energy levels in many ways.