Early-onset dementia has increased by 200% in the last 20 years — and most people still believe it’s a disease that only affects the elderly.

In this episode of Cut Through, brain health expert Dr Simon Pedzisi explains why the foundations of brain health are built much earlier in life — often in our teens and 20s.

We unpack the lifestyle habits that quietly shape the brain during its most important development window, including screen time, sleep, hydration, diet, exercise, social connection and addiction patterns. Dr Pedzisi explains how the brain develops until around age 25, why modern lifestyles are putting that development under pressure, and why many of the neurological conditions seen later in life can begin decades earlier.  

We also discuss the warning signs of brain stress, the link between technology and cognitive health, the importance of human connection, and the simple daily habits that can strengthen brain resilience over time.

If you’re in your teens, 20s or 30s, this conversation will change how you think about your brain — and what you do with it.