There’s the age on your birthday card, and then there’s the age your body is quietly running at. We unpack why two people with the same chronological age can be 15 to 20 years apart in biological age and why that difference shows up in the outcomes that matter: heart disease, dementia, frailty and cancer. If you’ve ever felt like “age” doesn’t match how you actually feel, this conversation puts language and measurement around that hunch, and turns it into something you can act on.

We walk through the science in plain terms: your DNA sequence is mostly fixed, but epigenetics changes with your life. DNA methylation leaves a chemical fingerprint shaped by sleep, nutrition, stress, exercise and everyday habits. We discuss biological age testing and highlight DunedinPACE, a tool designed to estimate your pace of ageing. The most encouraging part is that these markers can move within months, which means the focus shifts from fear to feedback and from speculation to behaviour you can adjust.

From there we zoom out to the bigger “why”: ageing is driven by multiple cellular processes, so interventions that touch many pathways at once matter. Movement, good sleep, real food and genuine connection can influence more of your biology than most capsules. To make it practical, we share the PREP framework: Prevent what accelerates you, Rewire your routines so they fit your life, Elevate with small upgrades like strength training and better sleep, then Perform by living well now because the goal is healthspan and more energy inside your days.

If you found this useful, subscribe, share it with a friend and leave a review. What’s one thing you’re going to prevent this week?

Thank you for listening to The Long View with Dr Sunil Kumar.

If this episode resonated, take a moment to follow the podcast, leave a review, or share it with someone who might benefit from a longer perspective.

New episodes are released regularly.
Until next time, take the long view.