Peter Forsham developed insulin dependent (Juvenile-Onset) diabetes at the age of 9, which required his taking insulin injections daily for the next 71 years of his life. His determination and courage as well as his intellect made him qualify as a doctor, and a specialist and an authority in endocrinology. He dedicated his entire life and expertise to the study of adrenal cortical hormones and did pioneering work in the field of disease relating to adrenal glands. He trained several young doctors in endocrinology and Diabetes.

He was the director of metabolic research unit from 1952 until his retirement in 1984. He was one of the earliest patients to receive the benefit of insulin injection which had recently been discovered by the Canadian team led by Frederick Banting.

Peter Forsham was a veteran of 71 years of diabetes who inspired diabetic patients of all ages and is a living proof of the ability to succeed inspite of the disorder.