Puberty is triggered by the brain, which starts the hormones flowing through the bodies of both boys and girls. The first stage of hormonal reactions starts when the hypothalamus releases a hormone called gonadotropin-releasing hormone (GnRH). This hormone, in turn, signals the pituitary gland, an endocrine gland the size of a pea at the base of the brain, to release luteinizing hormone (LH) and follicle stimulating hormone (FSH). These are the hormones that start the process of sexual development. oestrogen
It would help a cosmetologist recognize new clients. It could keep track of a client's past styles and looks. Why do celebrities tend to be trendsetters? They often have professional stylists.
