Dr. David H. Dighton qualified at the London Hospital Medical College in 1966 with MB and BS (London) degrees. In 1970, after a short time in NHS general practice, he became a British Heart Foundation Fellow in Cardiology at St. George's Hospital Hyde Park Corner, London, working with cardiologists Dr Aubrey Leatham and Dr Alan Harris. In 1973, he became a MRCP(UK), and later became a Lecturer (London University) in Medicine and Cardiology at Charing Cross Hospital, London. In 1980, the Vrije University Hospital in Amsterdam appointed him as Chef de Clinique (Assistant Professor). Having returned to the UK in1982, he worked both in his own private medical practice in Loughton, Essex (The Loughton Clinic, was initially established in 1973 as a medical nursing home), and at the Wellington Hospital, London. In 2000, he started a private diagnostic cardiac centre specialising in heart disease prevention and the early detection of heart and artery disease (The Cardiac Centre Loughton). He retired from practice aged 76-years, having been a medical student and doctor for 58 years. His retirement followed many conflicts with three medical regulators. He had disagreements with them about how medicine should be practised, and who is most qualified to regulate and supervise it. Observing the progressive demise of the NHS in the UK, he remains in disagreement with them; views expressed in his book, The NHS. Our Sick Sacred Cow. 2023.