In this episode, Mark sits down with Sue-Ching Yeoh, an AHPRA-registered Oral Medicine Specialist with clinical appointments at Royal Prince Alfred Hospital and Chris O’Brien Lifehouse, and an academic role at the University of Sydney. This conversation goes far beyond dentistry. A/Prof Yeoh explains how the mouth acts as an early warning system for systemic disease, including autoimmune conditions, cancer, HPV, and chronic inflammation. She breaks down what gum disease actually is, why bad breath is often a medical issue rather than a hygiene one, and how lifestyle, genetics, vaping, smoking, and even social media trends are quietly damaging oral health

They also cover practical, no-nonsense advice most people never hear:

• How to properly self-check your mouth

• The truth about tongue cleaning, salt water rinses, whitening, and sensitivity

• What tooth wear says about stress, nerve health, and aging

• When cosmetic treatments help and when they mask deeper problems

• Why early detection in oral health can be life-saving

Eight Sleep’s newest generation, Pod 5. isn’t just another bed-frame add-on; it’s a high-tech mattress cover that actively adjusts to your body temperature throughout the night, cooling, warming, and even elevating your body when needed, all based on real-time data. The new Pod 5 introduces for the first time, a hydro-powered blanket system, utilising the same technology as the cover to extend temperature regulation across your entire body, not just the mattress surface. Clinically proven to increase quality sleep by up to one hour each night, it’s basically like having an AI-powered sleep coach, personal thermostat, and advanced health tracker working for you while you rest. 

Head on over to eightsleep.com/project100 and use the code PROJECT100 (that’s Project one-zero-zero) and get up to $550 off your very own Pod 5. Trust me, your body will thank you for this investment in better sleep.

The all-new WHOOP is here — now 7% smaller with 14+ days of battery life. New features like Healthspan show how your daily habits are affecting your rate of aging — and now you can check your blood pressure straight from your wrist. If you’re serious about performance, longevity, and actual progress — this is it. Sign up for a one-month free trial at WHOOP.com — or visit join.whoop.com/mentored for one month off your annual membership fee.