A member asked:

Why are the hematocrit and blood concentration levels lower in women than in men?

A doctor has provided 1 answer

Testosterone: Testosterone causes some proliferation of the red cell precursors at puberty. I suspect this is the result of natural selection as early humans were hunter-gatherers. High hemoglobin improves aerobic fitness (ask a sports cheater), and allows faster running. Survival requires you run faster than the next guy when you're both being chased by a bear.

Answered 11/4/2018

3.4k views

Thank

Related Questions

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more