- Fatigue and Unusual Weakness
Feeling tired after a busy day is normal. However, persistent exhaustion that does not improve with adequate sleep may deserve attention.
Vitamin B12 is necessary for healthy red blood cell production. When levels become too low, some people develop megaloblastic anemia, a condition in which red blood cells are unusually large and do not function normally.
This can reduce the body’s ability to transport oxygen efficiently, contributing to fatigue, weakness, and reduced stamina.
Fatigue has many possible causes, including iron deficiency, thyroid disorders, sleep problems, and
