We see significant rises in prolactin after intimate contact between humans and other mammals, for example by hugging a friend or getting a massage. These increases in oxytocin (the ‘cuddle hormone’) can inhibit dopamine and promote the synthesis of prolactin. Similarly, crying can increase prolactin. Interestingly, sex in humans and other mammals (including pigs, bonobos and dolphins) has evolved as a bonding behaviour for both sexes and this is stimulated by the release of oxytocin and prolactin.

In males, elevated prolactin leads to a condition called hyperprolactinemia – which can be a result of a dysfunctional pituitary gland (hypopituitarism) or may be caused by low oestradiol levels in some men 3-6. A pharmacologically induced lowering of prolactin is sometimes used in the treatment of hyperprolactinemia, though this should be done with extreme caution as it can have negative impacts on mood and the musculoskeletal system.

Masteron Injection is a steroid that is primarily favored by athletes looking to achieve a dry, hard physique. This is due to its ability to promote fat loss while retaining lean muscle mass and its minimal estrogenic activity – so it will not cause water retention or gynecomastia.