👉 Endophasic, also known as nuclear phase, is a type of hormone that has a rapid onset but a slow duration. It is typically produced by the pituitary gland and is released into the bloodstream to regulate various bodily functions, including growth, metabolism, and bone density. In contrast to other hormones like progesterone or estrogen, endophasic hormones are primarily secreted in response to stress or hormonal changes, rather than being produced directly from the pituitary gland. This