Puberty begins when the gland increases the amount of in you're bloodstream?

Puberty begins when the hypothalamus signals the pituitary gland to increase the production of gonadotropins, specifically luteinizing hormone (LH) and follicle-stimulating hormone (FSH). This hormonal surge stimulates the gonads (ovaries in females and testes in males) to produce sex hormones, such as estrogen and testosterone, leading to the development of secondary sexual characteristics. This process marks the transition from childhood to sexual maturity.