The main method of communication in the endocrine system is through hormones. These chemical messengers are secreted directly into the bloodstream by various glands, such as the thyroid and adrenal glands. Once released, they travel to specific target organs or tissues, where they bind to receptors and elicit physiological responses. Hormonal signaling is crucial for regulating numerous bodily functions, including metabolism, growth, development, and mood. Unlike the rapid responses of the nervous system, the endocrine system generally produces slower, longer-lasting effects, coordinating complex processes over time.