World Athletics president Sebastian Coe says the track and field’s governing body has approved the introduction of cheek ...

Dormant genes on the X chromosome may reawaken in old age, potentially giving the aging female brain a boost that the male ...

Alongside hormones, the sex chromosomes — X and Y — are one of the starkest biological differences between males and females, and they could help provide biological explanations for why these ...

Preserving the integrity of competition in the female category is a fundamental principle of the sport of athletics,” the ...

Females have one active X chromosome and one dormant X chromosome in each cell. But a study suggests that genes on the dormant X get "reawakened" later in life, potentially giving the brain a boost.

Dormant genes on the X chromosome may reawaken in old age, potentially giving the aging female brain a boost that the male brain doesn't receive. This phenomenon may help to explain why, on many ...