Does Fatigue have an unshakeable hold on you?

Fatigue is different from drowsiness. Fatige that is not relieved by enough sleep, good nutrition, or a low-stress environment should raise concerns.

There are brain chemicals, called neurotransmitters, that "excite" us and give us energy. When we use up all our stores of these excitatory neurotransmitters and do not properly replenish them, it is logical that fatigue will follow.