Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in their external surroundings. For example, when the temperature outside rises, our bodies sweat to cool down, keeping our internal temperature around 98.6°F. This balance is crucial for our cells to function properly and for overall health. Different systems in the body work together to achieve homeostasis. The nervous system detects changes and sends signals to other parts of the body, while the endocrine system releases hormones to help regulate functions like metabolism and growth. Together, these systems ensure that we stay healthy and can adapt to various conditions.