← Chapter 3
Psychology · Chapter 3

The Endocrine System

Alongside the fast, electrical nervous system runs a slower chemical one: a network of glands that pour hormones into the bloodstream to shape mood, sleep, stress, hunger, and growth. Tap any gland on the body to see the hormone it releases — and what that hormone does.

The glands of the body

Tap a gland on the body · or choose one from the list
The endocrine systemtap a gland to explore it