Learn how sex-biased interbreeding between Neanderthals and modern humans explains why Neanderthal DNA is largely missing ...

Chromosomes are tightly coiled structures in each of your cells that contain DNA, the code for all life. DNA is organized in segments on chromosomes called genes. Humans typically have 46 chromosomes ...

A study shows that interbreeding between the two species occurred primarily in one direction, and the origin of this bias is ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An X-linked gene called ...

Men tend to lose the Y chromosome from their cells as they age. But because the Y bears few genes other than for male determination, it was thought this loss would not affect health. But evidence has ...

Studies show aging men often lose the Y chromosome in some cells, a change now linked to heart disease, cancer, and shorter ...

Men who lose the Y chromosome in blood cells face higher heart disease risks, independent of smoking, obesity, or diabetes.

By late life, a surprising share of men have blood cells that no longer carry the Y chromosome at all, according to large genetic studies in cohorts such as the UK Biobank. That quiet genetic drift ...

Men tend to lose the Y chromosome from some of their cells as they age — a process once thought to be harmless because the Y ...

As men age, many quietly lose the Y chromosome in some cells, and scientists now link this hidden change to heart disease, cancer and even shorter lifespans.