How does the endocrine system regulate body functions?

The endocrine system regulates body functions through the release of hormones, which are chemical messengers secreted by glands into the bloodstream. These hormones travel to various tissues and organs, modulating processes such as metabolism, growth, reproduction, and mood. By maintaining homeostasis, the endocrine system ensures that the body responds appropriately to internal and external changes. The interplay between different hormones allows for precise control over numerous physiological functions.