The changes of puberty are initiated by what part of the brain?

The changes of puberty are initiated by the hypothalamus, a region of the brain that plays a key role in regulating hormones. It begins to release gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to produce hormones that trigger the development of secondary sexual characteristics and reproductive functions. This hormonal cascade marks the onset of physical and emotional changes associated with puberty.