The Early Industrial revolution began primarily in the Great Britain during the 1760s until 1851 and was marked by drastic major changes in agricultural, manufacturing, and transportation sectors, which had a profound effect on the social, economic and cultural conditions in Britain (initially) and the rest of Continental Europe and eventually the US and the world.
The human body wants blood glucose levels to remain at "normal levels." Once the glucose concentration in the blood increases, the body releases insulin which help lower the glucose levels. The process is explained HERE.