The pineal gland was once considered mysterious ... Melatonin inhibits the release of reproductive hormones, called gonadotropins, from the pituitary gland, affecting male and female reproductive ...

Your body clock regulates hormones that impact mood, metabolism, and sleep. Learn how to align your lifestyle with your ...

Hormones are chemical messengers secreted directly into the blood, which carries them to organs and tissues to exert their functions. The pituitary gland is often subdivided into the posterior and ...