The researchers found that old males have more sperm than ... it is just the presence of seminal fluid or its age too that ...

her eggs will still be as old as her chronological age,” Weschler says. “This reality can be incredibly frustrating and more than a tad inequitable when it comes to female fertility.

A 66-year-old woman in Germany has given ... Alex Robles of Columbia University Fertility Center in New York said that a biological pregnancy at this age is "very unusual." "Statistically, the ...

While many people in their early 30s may find it relatively easy to conceive, fertility tends to decline more significantly after 35 years old — a marker often called “advanced maternal age.” ...

Average age also increased for first-time moms, according to data from the Centers for Disease Control and Prevention.

But fertility does begin to diminish slowly from the age of 25 as a woman's eggs decrease ... has just 100 eggs left and they will be 40 years old - lessening the chance of them becoming fertile.

With age, you’re also at a higher risk for disorders that affect your fertility. If you get pregnant after 35 years old, experts call this an “advanced maternal age” pregnancy. But it’s ...

old-age and child dependency, and population ageing. High levels of immigration in the U.S. have so far largely staved off the effects of sub-replacement fertility. Population projections from the ...