We like to think we are in charge of our own behaviour — 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, for example — but they also bathe the brain in chemical information that tells us about the world around us and the people in it. …read more
Source: Prevent Disease
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