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.
Blazer is an upper garment worn over shirts on both formal and casual occasions. It resembles a jacket and a coat, but it is a bit casual than a suit jacket and more formal than a sports coat. Blazers are worn by both men and women. Blazers are typically in one solid color.