

Steroid hormones, made from cholesterol, include the sex hormones such as estrogen, progesterone, and testosterone and the adrenal cortex hormones, including cortisol, aldosterone, and androgens.

According to their chemical makeup, hormones can be divided into three categories: steroid hormones, peptide hormones, and amino acid derivatives. Hormones affect many body functions, such as growth, metabolism, mood, and reproduction. They travel through the bloodstream to different body parts, interacting with cells, tissues, and organs. The brain, the pituitary gland, the thyroid gland, or the adrenal glands can produce hormones.

There are many various hormones, and each has a specific job. Hormones are chemical messengers in the body that help regulate different body processes.
