Answer:
The human body is made up of millions of cells that need the conditions inside the body to be as constant as possible so they can work properly.
The human body makes millions of new molecules into the body while eating and digestion. After having a meal, blood sugar levels increase. The body functions to balance the glucose level in blood. The body releases heat energy every time on moving. The amount of water the body takes into and loses from the body varies all the time and the cells are constantly producing poisonous waste.
The blood sugar levels in the body are coordinated by hormones, chemicals that regulate and balance the working of organs and cells. Hormones are made in endocrine glands and are carried around the body to their target organs in the bloodstream.