Vitamin B12 performs a number of pivotal roles in the body and these roles are responsible for both physical and mental processes. Take its role in supporting the nervous system. The nervous system transmits signals between the brain and the rest of the body, including internal organs.
Constant fatigue is one of the main symptoms of a B12 deficiency, because when this vitamin is low, the body has fewer red blood cells.
The primary job of those red blood cells is to transport oxygen from the lungs to other parts of the body.
A lack of red blood cells translates to fatigue.
That’s why no matter how much sleep you get, if there aren’t enough of these cells coursing through your body, then you’ll still spend the day exhausted.
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Feeling unusually tired or weak is one of the most common warning signs of the condition, says medical website Healthline.
If you have a vitamin B12 de