What is the function of estrogen in females?

Estrogen plays a significant role in the development of secondary sexual characteristics during puberty in females. This hormone is responsible for the physical changes that occur, such as the development of breasts, widening of hips, and the onset of menstruation. These changes signal the body’s transition from childhood to adulthood and prepare the female reproductive system for potential fertility.

While other hormones and factors might influence aspects like sleep or stress, estrogen's primary and most recognized function in this context pertains to its role in signaling the physical changes associated with puberty. Understanding these physiological changes is crucial for grasping the broader context of female development and reproductive health in psychology and biology.