Are you sprouting hair in unusual places? Blame it on hormones! In this BrainPOP movie, Tim and Moby explain some of the many body processes regulated by chemicals called hormones, which do everything from monitoring the amount of sugar in your blood to raising your heart rate during moments of stress. You’ll learn about the different types of hormones that your body releases during puberty - such as those that make your body grow, make boys’ voices deepen, cause your reproductive organs to change, and bring about other physical and emotional changes. Anyone need a razor?

Learn More:

What are hormones? What do they do?

What does the hypothalamus do?

What exactly is the thyroid gland?