Dr. Charles Alessi is a globally recognized and trusted leader in health care. He is the global chief clinical officer of HIMSS, a mission driven, not for profit global membership organisation. He is a physician in London, with more than 35 years of experience in all aspects of clinical practice in the UK National Health Service. Most recently, he served as the Chairman of the National Association of Primary Care, part of the NHS confederation, where he was at the heart of the recent health and social care reforms. He is also the Senior Advisor to Public Health England, a position leading thought leadership around productive healthy ageing including dementia, targeting risk reduction. Furthermore, he fulfils key roles in PHE around digital interventions, particularly those that involve behavioral change. Other responsibilites include air quality and antibiotic prescribing. He leads thought leadership around productive healthy aging.

Former Scientific Advisor to the Alzheimer Society of Canada, Professor Chambers' research career has contributed to our understanding of many issues for people living with dementia. As a leader of the Canadian Study on Health and Aging, this was the first nation-wide Canadian population study of dementia prevalence, incidence and caregiver issues by following the health trajectory of 10,000 older adult Canadians for 10 years. Professor Chambers co-led with the award-winning community wide program to prevent cardiovascular disease, a major cause of dementia. The Cardiovascular Health Awareness Program has received awards from the British Medical Journal, Canadian Institutes for Health Research, American Heart Association and the Canadian Medical Association Journal. Professor Chambers' work on evaluating the effectiveness of community screening for the signs of dementia has received international recognition.

Muir Gray entered the Public Health Service in Oxford in 1972 after qualifying in medicine in Glasgow and is a consultant in public health. He has been working with both NHS England and Public Health England with the aim of increasing value for both populations and individuals and published How To Get Better Value Healthcare in 2007. The means of doing this through Systems and Personalisation is now called Population Healthcare, the aim of which is to maximise value and equity by focusing not on institutions, specialties or technologies, but on populations defined by a common symptom such as breathlessness, condition such as type 1 or Type 2 Diabetes or by a common characteristic, such as multiple morbidity. Recently he has returned to his first public health mission - preventing the changes we assume are due to ageing and disease by getting the right attitude and fighting back against an environment that makes us inactive.