Question

Describe a positive feedback loop and give an example. (Make it simple)

Answer 1

A positive feedback loop is a process where an initial change in a system causes further changes that amplify the original effect. In simple terms, it means that something happens, and that encourages more of the same thing to happen.

**Example:**

Consider the process of childbirth. When a baby pushes against the cervix, it stimulates nerve cells to send signals to the brain, which then releases oxytocin. This hormone causes the uterus to contract more forcefully. As the contractions become stronger, the baby pushes harder against the cervix, leading to the release of even more oxytocin. This cycle continues to amplify until the baby is born.

In this case, the initial pressure from the baby results in more contractions, which increases the pressure even more—a clear example of a positive feedback loop!