At what age are men the most fertile? - Quora

Which food items make male sperm healthy? - Quora

Why is it important to keep testosterone levels up? - Quora

What is actually happening to a woman during her menstruation? - Quora

Are women generally only attracted to the top 10% of men? - Quora

What does a population pyramid demonstrate? - Quora

Between what age ranges are women most sexually active? - Quora

At what age are men the most fertile? - Quora

At what age, on average, is a human most fertile? Is it different for men and women? What can this tell us about the structure of ancient cultures? - Quora

At what age do most men stop growing? - Quora

At what age is the peak of fertility for humans? - Quora

Big brained man explains evolution/why men should be forgiven for cheating : r/NotHowGirlsWork

Is it possible for a 4 year old to have sperm? - Quora

Why is the U.S. birth rate so high among developed nations? - Quora

How difficult it is for a 33 year old man to marry? - Quora

Why do many women only find a few men attractive? - Quora