Homeostatic systems may be controlled by positive feedback. The stimulus here is to continue in direction until a climactic event occurs. Following this event the body returns to . Because their end result is to the activity, positive feedback mechanisms occur much frequently in the body than negative feedback mechanisms.

Positive feedback reinforces a stimulus, to continue in the same direction until it reaches a target. following this, negative feed back begins to occur to return the body back to its original conditions. positive feed back occurs less frequently in the human body, because their end result is to increase the occurrence of an activity (for example the secretion of adrenaline when you are being chased by a bear!). Negative feedback is more because it is usually done to restore a body system that is out of balance by any degree at all (such as when you are hot and begin to sweat)

Take for example, when a woman is about to give birth. Positive feedback reinforces the contraction of the uterus, and this continues in the same direction until a climatic event occurs (which is the delivery of the child). Following this, the body returns to the initial equilibrium position (homeostatic position). which is normalizing her body conditions

Because their end result is to increase the activity (contraction of the uterus), positive feedback mechanisms occur less frequently in the body than negative feed back ( A mother doesn't give birth everyday!)