Hormonal regulation refers to the process by which hormones control and coordinate various physiological functions in the body. Hormones are chemical messengers produced by glands in the endocrine system, such as the pituitary gland and thyroid gland. They travel through the bloodstream to target organs, influencing processes like growth, metabolism, and mood. This regulation ensures that the body maintains homeostasis, or a stable internal environment. For example, the hormone insulin helps regulate blood sugar levels, while cortisol manages stress responses. Proper hormonal balance is crucial for overall health and well-being, as imbalances can lead to various disorders.