# I lost 40kg and Kept It Off — The Psychology Behind Lasting Change | Guest: Brittany McNabb

Page: https://stenobird.com/podcast/make-it-happen-with-iyia-liu-7500418/i-lost-40kg-and-kept-it-off-the-psychology-behind-lasting-change-guest-brittany-mcnabb
Text version: https://stenobird.com/podcast/make-it-happen-with-iyia-liu-7500418/i-lost-40kg-and-kept-it-off-the-psychology-behind-lasting-change-guest-brittany-mcnabb.md
Podcast: [Make It Happen with Iyia Liu](https://stenobird.com/podcast/make-it-happen-with-iyia-liu-7500418)
Published: 2026-08-08T21:00:00+00:00
Episode link: https://omny.fm/shows/make-it-happen/111-guest-brittany-mcnabb-how-to-rewire-your-brain-for-success
Audio file: https://pdst.fm/e/dts.podtrac.com/redirect.mp3/traffic.omny.fm/d/clips/7784f840-c291-422a-924b-ad9000bbad71/b72f05cf-47db-4d80-a2fc-b347017cdc70/d8e58443-d106-4ab1-834d-b49f00a38f4d/audio.mp3?utm_source=Podcast&in_playlist=4487f82a-508e-4ddd-af33-b347017cdc9b
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Duration seconds: 2131

## Resource

You are intelligent. You know what to do… so why can’t you make yourself do it? In this episode I explore why weight loss and business burnout have far less to do with motivation than most people believe. I sat down with Brittany McNabb from Mind, Body, Britt - who lost over 40kg, built a successful personal training business and now helps thousands of women transform not only their bodies but the way they think. With a background in psychotherapy, she explains why willpower isn't the problem - and what actually is. We unpack the surprising role your nervous system plays in weight loss, the mindset successful entrepreneurs and athletes have in common and the psychology behind why you keep failing (even when you know better).  If your goal is improving your health, building confidence or creating a business you love, this conversation is packed with practical insights that apply far beyond fitness. If you enjoyed this episode, subscribe for more conversations with entrepreneurs, experts and high performers helping you build a business and a life that feels aligned Ready to start building? Join our #1 Business Training today ⬇️ 🔗 Book a strategy call: https://www.makeithappen.org.nz/ 🔔 Subscribe for weekly videos on business, mindset, and building your dream life 🌐 Learn more: http://makeithappen.org.nz/ 🌐 Instagram: @makeithappen   📣 Share this video with someone who needs the push to finally start See omnystudio.com/listener for privacy information.

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