Why would you want to live longer, if not to spend more time with the people you love? That question sits at the heart of this conversation with brain health expert Dr Tommy Wood. And today, we tackle the biggest mistakes people make when it comes to protecting their brain and longevity.

Tommy is Assistant Professor of Paediatrics and Neuroscience at the University of Washington, where his research spans brain development, cognitive decline and dementia prevention. He’s also worked with elite athletes and Formula One drivers as a performance coach. And in his must-read book The Stimulated Mind, he combines that breadth and specialism to make understanding brain health easier – and more fun – than you might think.

We start with mindset, and the surprising research findings that how you feel about ageing can shape how you go on to age. As someone in his 40s, I was delighted to hear Tommy cite a paper called Humans Peak in Midlife, showing that increasing wisdom, emotional intelligence and moral reasoning could make age 55 to 65 my best brain decade yet!

We talk about the risk of becoming so focused on optimising your own health that you neglect what matters most, your relationships with other people. And Tommy points out why chasing longevity without that connection is missing the entire point.

From there we get practical. We discuss mistakes like ignoring your blood pressure (and the implications for dementia) and what testing markers like homocysteine early, rather than waiting until something goes wrong, means for your long-term brain health. I also ask Tommy which supplements are worth considering, including the latest evidence on creatine and basic multivitamins. And he reveals the surprisingly strong link between your oral health and your brain.

Finally, we consider the toxic load of modern life, from microplastics to air pollution, and whether you should filter your water. Tommy’s balanced, evidence-based perspective avoids scaremongering while still taking these issues seriously.

Whether you’ve listened to every one of Tommy’s previous appearances or you’re new to the podcast, this conversation is packed with practical ideas you can act on today, whatever your stage of life. As Tommy reminds us, it is never too late to start.