CHEMICAL YOU

摘要

WE LIKE to think we are in charge ofourownbehaviour-that our thoughts are under our conscious control and that our actions are mostly reasonable. But our behaviour is also in the sway of an ancient system of mind control: hormones. These protein messengers are best known for their fundamental duty as regulators - think of insulin and blood sugar, forexample-buttheyalsobathethebrainin chemical information that tells us about the world around us and the people in it.