Our Experts

Dr Warrick Bishop, MBBS, FRACP, is a preventive cardiologist and the creator of the Healthy Heart Network, known for helping people understand and lower their real risk of heart attack. He has 20+ years’ specialist experience, a private practice of 10,000+ patients, and extensive expertise in cardiac CT and lipid management—he was the first cardiologist in Tasmania recognised for CT coronary angiography training and has reported thousands of cardiac CT scans. He’s also a best-selling author and keynote speaker, including the books Have You Planned Your Heart Attack? and Know Your Real Risk of Heart Attack. In Younger Longer, Dr Bishop brings clear, evidence-based guidance that turns complex cardiology into practical steps members can use to prevent disease and live longer, healthier lives.

Mitch Wallis is the founder & CEO of Heart On My Sleeve, the social movement-turned-organisation helping people speak openly about mental health, and he’s now one of Australia’s most in-demand mental health advocates and keynote speakers. After sharing his own lived experience with anxiety, depression and OCD, he launched Heart On My Sleeve in 2017 and rapidly built a global community; today he works with workplaces and audiences on connection, resilience and psychological safety, drawing on formal training in psychology, lived experience, and practical tools like his Real Conversations education program.

Guy Leech is one of Australia’s most iconic endurance athletes, best known as a world champion Ironman and the first winner of the Coolangatta Gold. After a decorated sporting career, Guy turned his focus to public health, launching Younger Longer—a science-backed longevity platform—and founding Heart180, which has deployed thousands of defibrillators nationwide. Named Australia’s Fittest Athlete over 40, he now works with top medical experts to inspire Australians to live stronger, healthier, and longer lives.

Dr Sandra Iuliano is a nutrition scientist at the University of Melbourne and a leading expert in bone health and healthy ageing. For over two decades she’s worked across hospitals, aged care and academia to show how everyday nutrition—especially adequate protein, calcium and vitamin D—supports stronger bones, muscle function and independence. At Younger Longer, Dr Iuliano turns that evidence into clear, doable guidance: meeting daily protein and calcium targets, smart dairy and non-dairy choices, simple meal plans, and practical habits that preserve strength, balance and mobility. Her programs are down-to-earth, scientifically sound, and designed to help members build bones—and confidence—for life.

Dr. Peter Larkins is one of Australia’s most respected sports physicians, combining decades of experience in elite sport, medicine, and media. A former Olympic runner with dual qualifications in medicine and science, he has been a trusted doctor to AFL teams and a popular media expert simplifying health for everyday Australians. Now, with his new book "The Healthy Hundred. 100 Ways to a Healthier, Happier and Longer Life", he shares practical, science-backed strategies to help people live stronger, healthier, and longer lives.

Kerri Pottharst is an Australian sporting legend, Olympic gold and bronze medallist, and a symbol of resilience and reinvention. After a career-ending knee injury in indoor volleyball, she pivoted to beach volleyball and went on to win bronze at the 1996 Atlanta Olympics and gold at the 2000 Sydney Olympics. Today, she’s a sought-after motivational speaker, author, and coach, helping individuals and teams perform under pressure and turn setbacks into comebacks.

Dr Helena Popovic is an Australian medical doctor, brain health expert, and international speaker renowned for her work in neuroplasticity, dementia prevention and chronic disease reversal. A University of Sydney graduate, she has authored three bestsellers including NeuroSlimming - Let your brain change your body and Can Adventure Prevent Dementia?, blending science with personal experience to empower others to boost brain function and live longer, healthier lives.

Shannan Ponton is an Australian fitness icon best known as a trainer on The Biggest Loser Australia. With over 30 years in the fitness industry, he has coached elite athletes, champion boxers, and professional rugby teams. Beyond television, he’s a passionate personal trainer, motivational speaker, and ambassador for health organisations including the Melanoma Institute and Cancer Council Australia—continuing to inspire Australians to lead healthier lives.