Prolactin is a hormone produced in the pituitary gland, named because of its role in lactation. It also has other wide ranging functions in the body, from acting on the reproductive system to influencing behaviour and regulating the immune system.
to carry or have on the body or about the person as a covering, equipment, ornament, or the like: to wear a coat; to wear a saber; to wear a disguise. to have or use on the person habitually: to wear a wig. to bear or have in one's aspect or appearance: to wear a smile; to wear an air of triumph.
The definition of a suit is  a complete outfit or a set of clothes meant to be worn together. An example of suit is a tuxedo. Suit means a collection or set of things. An example of suit is diamonds, spades, hearts and clubs in playing cards.