How does insulin work?
For your body to use glucose, the fuel that comes from carbohydrates, it must be transferred from the blood to your body’s cells to be used up as energy.
The vital hormone that allows glucose to enter cells is called insulin and it is normally produced naturally in the pancreas. If this process doesn’t happen, the level of sugar in the blood becomes too high.
Being unable to naturally produce insulin is the disease known as diabetes. More than 4 million people in the UK are diagnosed with it, and it is a major cause of kidney failure, heart attacks and blindness.
Who was Sir Frederick Banting?
Frederick Banting was born on November 14 1891 in Ontario, Canada. He served in the First World War despite initially being refused while in medical school for poor eyesight since the army wanted more doctors on the front line.