Podcasts · Show Me the Science with Luke O'Neill

The Science of New Year Resolutions

1 Jan 2026 · 15 min · Episode 248

Every January, millions of us promise that this will be the year we finally change our habits. We’ll sleep more, stress less, move our bodies, eat better, learn something new, or finally tackle the clutter that’s been quietly judging us from the corner of the room. But by spring, most of those resolutions are long forgotten.

On this week’s podcast, Professor Luke O’Neill digs into what research really tells us about New Year resolutions — why we make them, why so many fail, and how we can dramatically improve our chances of sticking with them.

Luke explains why the pandemic triggered a surge in resolution-making, how the brain responds to fresh starts, and why January gym memberships soar even as long-term attendance collapses. He also shares evidence-based strategies that actually work, from setting specific and measurable goals to harnessing social support, using apps, and learning new skills that boost brain health as well as motivation.

This isn’t about willpower or guilt. It’s about understanding how humans change — slowly, imperfectly, and with the right conditions. If you’re setting intentions for the year ahead, this is the science you want on your side.

You can email Luke with questions or suggestions for future episodes at laoneill@tcd.ie.