Endocrine signaling is a form of communication in the body where hormones are released into the bloodstream by endocrine glands. These hormones travel through the circulatory system to target organs or tissues, where they bind to specific receptors and trigger various physiological responses. This process helps regulate many bodily functions, including metabolism, growth, and mood. Examples of hormones involved in endocrine signaling include insulin, which helps control blood sugar levels, and thyroid hormones, which regulate metabolism. The precise coordination of these signals is crucial for maintaining homeostasis, ensuring that the body functions optimally in response to internal and external changes.