Chronic Fatigue Syndrome or CFS is a common fatigue disorder that cannot be characterized by any underlying medical condition. The fatigue may get worse with physical or mental activity but doesn't improve with rest. While there are many theories as to what causes CFS, there isn't one test that can diagnose it. The theories range from viral infection to mental stress, but the cause still isn't known.

Signs and symptoms may include:

Some viruses cause someone to develop this disorder. After someone gets infected with a virus, their body is still recovering and healing. This can trigger Chronic Fatigue Syndrome. This is extremely relevant nowadays because of COVID-19. When people get sick with the Coronavirus, they experience a lot of fatigue and loss of concentration. Therefore, is it important to be aware of this condition?

Another explanation for CFS is hormonal imbalance. People who have chronic fatigue syndrome also sometimes experience abnormal blood levels of hormones produced in the hypothalamus, pituitary glands, or adrenal glands.

There are a few factors that might increase one's risk for CFS:

Chronic Fatigue Syndrome can also cause higher levels of depression. When someone isn't getting enough sleep and isn't resting enough – this can cause high levels of anxiety and depression.

It is important to consult with a doctor when you experience excessive fatigue. Because the cause isn't known yet, it is important to take care of it in order to prevent any complications.