Aerin Bailey, 34, was born a girl called Alice, but aged 16 started to have thoughts about wanting to become male.

New research reveals how male hormones increase men's susceptibility to skin infections, opening avenues for targeted ...

Hair loss in women is driven by complex interactions between hormonal changes, hair follicle biology, and the hair growth ...

This is why societies have long pushed young people toward desirable long-term outcomes. It helps both the individual and the ...

Humans and most other organisms have internal biological clocks that track the daily cycle of sunrise and sunset. These ...