Hemoglobin levels could indicate increased risk of Alzheimer’s disease, vascular dementia

levels are low, the brain may receive less oxygen, particularly if anemia is significant or prolonged. Chronic reductions in oxygen delivery could potentially contribute to changes in vulnerable brain regions, such as the hippocampus, which plays an important role in memory.”

He explained, “Both low and high hemoglobin levels could potentially contribute to vascular problems through different mechanisms. Low hemoglobin may compromise oxygen delivery, while high hemoglobin can increase blood viscosity and may be associated with a greater risk of blood clots and strokes.”

Trinh added that “[t]hese are plausible explanations, but the study did not directly demonstrate that these