The endocrine system secretes numerous hormones that are involved in physiological homeostasis, metabolism, development and growth, cognitive function, sexual function, and reproduction.

Hormones are natural substances made by the glands of our hormone system. They are carried around our body in our bloodstream. They act as messengers to carry signals between one part of the body and ...

Hormones are small molecules or peptides that act in signalling between one cell or cell set and another. They are generally involved in high-level processes of an organism such as growth ...

Although American scientists had been busy studying hormones in the 1930s and 1940s, Margaret sanger's dream of a pill for birth control improbably came to fruition because of the discovery of a ...