The body constantly produces sperm and re absorbs the unused sperm as nutrients. To produce more just keep you body heathy by eating correctly.
Vaccines stimulate production of antibodies.
erythropoitin secreted from kidneys stimulate rbc production.
No.
Hyperventilating
High levels of the hormone oestrogen stimulates the production of FSH hormone in women.
stimulate the production of acetylcholine
yes.
Lady's finger (OKRA), helps producing sperms... believe it. RESEARCHER myself.
Histamines.
Macrophages stimulate the production of other lymphocytes. They are produced by the differentiation of monocytes in tissues.
When the menstrual cycle is reversed, the force of gravity causes the production to destablizie, annihilating one's eggs and sperms (no babies for you!)
Tumors or growths in the ovaries or other reproductive organs in women, or in the testicles or related sexual organs of men, can also stimulate the production of prolactin.