KEY People JAMES PARKINSON James Parkinson (1755-1824) was an English surgeon, apothecary, and geologist best known for his discovery of Parkinson s disease. In 1817, he published An Essay on the Shaking Palsy, where he first described the symptoms of the neurological disorder later named after him. His observations laid the foundation for understanding motor conditions and paved the way for advances in neurology. Beyond medicine, Parkinson was a political activist and contributed to the fields of palaeontology and geology. His work in identifying Parkinson s disease remains vital in medical research and the treatment of movement disorders. CHRISTIAAN BARNARD Christiaan Barnard (1922-2001) was a South-African cardiac surgeon who performed the world s first successful human heart transplant in 1967. The ground-breaking operation took place in Cape Town, South Africa, and marked a milestone in medical history. Barnard s pioneering work revolutionised cardiac surgery and inspired advancements in organ transplantation worldwide. Though his patient lived only 18 days, subsequent transplants were much more successful. Barnard s bold innovation placed him among the most in uential surgeons of the 20th century, expanding the boundaries of modern medicine. HERBERT FREUDENBERGER Herbert Freudenberger (1926-1999) was a GermanAmerican psychologist best known for introducing the concept of burnout in 1974. His work described burnout as a state of physical and emotional exhaustion, particularly among professionals like healthcare workers. Freudenberger s research highlighted the impact of chronic stress and overwork on mental health, which helped to bring awareness to workplace well-being. His contributions have been fundamental in both psychology and occupational health, shaping how organisations approach employee stress management and mental health support in demanding professions. 220 ADULTS AND ELDERLY PEOPLE