DANVILLE, Pa. – A Geisinger study provides new insight into height differences between adult men and women, demonstrating that Y chromosome genes contribute more to height than their X chromosome ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. In a new study, scientists probed the ways in which the X chromosome may change with age and ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. It could be a major reason why females tend to have longer lifespans. | Credit: Illustration by ...

Researchers studied data from a million people and found evidence that a height gene shared by both sexes is amplified in men. By Gina Kolata Men are taller than women, by an average of about five ...

In female mammals, one of the two X chromosomes is usually inactive and forms the so-called Barr body. The image shows a cell nucleus with the Barr body marked in green. Unlike men, who carry one X ...

Doctors in Brazil discover and confirm that a woman has blood with male chromosomes, a rare case of human chimerism.

Extra X chromosomes significantly increase the risk for systemic lupus erythematosus (SLE) and Sjögren disease, with the prevalence of these conditions being higher among patients with Klinefelter and ...

On average, human males tend to be about 5 inches (13 centimeters) taller than females. But why? In short, we're not sure. Even though this sex-linked height difference exists across the world, we ...

The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact trigger for such degeneration is unknown, environmental factors can play a ...