Hormones act to help different parts of an organism to function in a coordinated way. The word hormone is derived from Greek and means, "to set in motion." Hormones control a number of bodily functions including growth, development, and reproduction. Among the many functions that these chemicals regulate are; metabolism growth, sexual function & reproduction, production of various blood components, reaction to stress, and regulation of other hormones. We have a wide range of hormone replacement supplements to help replace the declining levels we experience as we age.