The endocrine system only regulates long-term changes in the body.

This statement is not entirely true. While the endocrine system is primarily responsible for regulating long-term changes in the body such as growth and development, metabolism, and reproduction, it also plays a role in short-term responses to stress and other immediate changes in the internal environment. For example, the release of adrenaline from the adrenal gland in response to a stressful situation is a quick response controlled by the endocrine system. Overall, the endocrine system helps to maintain homeostasis in the body by coordinating both short-term and long-term physiological processes.