oxygen efficiently. Another factor: the kidneys produce erythropoietin (EPO), a hormone that supports red blood cell production. With reduced EPO, fatigue can resemble anemia-related tiredness.
Health resources including the National Kidney Foundation note that toxin buildup can drain energy and reduce stamina.
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Brainberries
If “I’m just tired” becomes your daily baseline even after rest, it’s worth paying attention—especially because fatigue often overlaps with…
Brain Fog or Difficulty Concentrating
Someone like Robert, 62, may notice mental
