Dr. Tim Anstiss is an expert in health-behaviour-change coaching. A physician by training (Southampton University) with a career spanning cardiology, psychiatry, and occupational medicine in the NHS, he now leads Virtual Health Labs, which builds AI-driven coaching chatbots for physical activity, smoking cessation, and chronic disease prevention used by NHS trusts and leisure operators. He teaches on coaching masters' programmes at Henley, UCL, and Cambridge, and helped develop the UK Department of Health's 'Let's Get Moving' physical activity pathway.