An introduction is the first set of information it is found at the beginning of your portfolio. The goal of your introduction is to explain to the reader what the
topic is about and what your portfolio is all about. Your introduction lets your
readers know what you hope to achieve and what they can expect from your
assignment.
The introduction is a brief paragraph which should be not be longer than one (1)
paragraph.

Explanation:

As blood sugar levels rise, the pancreas produces insulin, a hormone that prompts cells to absorb blood sugar for energy or storage.

As cells absorb blood sugar, levels in the bloodstream begin to fall.

When this happens, the pancreas start making glucagon, a hormone that signals the liver to start releasing stored sugar.

This interplay of insulin and glucagon ensure that cells throughout the body, and especially in the brain, have a steady supply of blood sugar.