Blood Sugar Graph

Negative Feedback Loops

Though possessing a less than appealing name these feedback loops are actually good for us and the environment! By definition, at least the one in our textbook "Environmental Science Fundamentals and Applications" it is "A feedback loop in which a system responds to a change by returning to its original state, or by decreasing the rate at which the change is occurring" 

For example, Dr. Rood did an example in class with his blood sugar by measuring it before eating a Snickers and measuring it for about 45 minutes afterwards. 

Another example of this is when your body is attacked by an infection, in order to fight it, the antibodies start attacking the infection and raises body temperature. This causes a fever, and when the fever breaks that means that the infection has been beaten and your body returns to normal body temperature.