John Jacob Abel

John Jacob Abel was an influential American biochemist and physician who pioneered the study of hormones and the development of medical laboratory techniques in the early 20th century. He is best known for isolating and identifying hormones like insulin and adrenaline, which revolutionized the treatment of conditions such as diabetes. Abel also established the first American school of pharmacology, advancing how medicines are studied and used. His work laid foundational principles for modern medicine and biochemistry, making him a key figure in understanding how chemicals in the body influence health.