What is the feedback mechanism of hormone regulation? Take the example of insulin to explain this phenomenon.

Hint:The feedback mechanism performs the functions of a regulator that aids and helps in maintaining the balance of hormones in the body. It keeps a check on the amount of the hormone released and keeps the amount of hormone released to be constant.

Complete answer:
The hormone feedback mechanism is defined as the mechanism that is used to maintain the hormone balance in the blood / body. The increase or decrease in the concentration of that hormone can sometimes stimulate and increase the secretion of that hormone or inhibit the secretion of the hormone. It’s called feedback.
 Feedback mechanisms control the most hormones that are secreted by endocrine glands. A feedback mechanism is a loop with the help of which a product feeds to regulate its own production. There may be two types of feedback mechanism, that are named as positive feedback and negative feedback.
Positive feedback stimulates and enhances the secretion and/or production of the hormone. On the other hand, the negative feedback prevents and inhibits the hormone from being secreted. Most mechanisms for hormone feedback constitute negative loops. Negative feedback helps and maintains the hormone concentration within a limited range.
For instance, the glucose level in the blood increases when we eat food that is rich in carbohydrate. The pancreas synthesizes and releases insulin as the amount of blood glucose rises. It will stimulate the blood glucose absorption by the cells. This is the process by how the blood glucose level drops.
Now, when insulin remains present in the blood, more and more glucose get transported into the cell, and glucose in the blood scarcity. To prevent these scarcities of glucose, the low glucose level inhibits the insulin secretion in the blood produces negative feedback.

Note:The hormone feedback system is defined as the process by which the hormone balance in the blood / body is maintained. A change in the concentration of that hormone may either stimulate and increase or inhibit and stop the secretion of the hormone.