About this episode

Bec Miller discusses the reasons behind overnight weight gain, focusing on water weight fluctuations, cortisol, and stress.

If you've ever felt like you gained 1–2kg overnight despite eating well and training consistently, this episode is for you. In today's episode, I'm breaking down the real reasons behind water weight fluctuations – and why rapid changes on the scale are almost never body fat. I share my own recent experience with frustrating weight fluctuations (including one I'm currently navigating), and explain what's actually happening physiologically when your weight suddenly shifts. I cover: ✅ How stress and cortisol cause fluid retention ✅ The sleep–cortisol cycle – and why poor sleep makes fluctuations worse ✅ The signs your cortisol may be out of balance ✅ The hidden, everyday stressors that keep your nervous system switched on ✅ Why water retention peaks before your period ✅ How low progesterone can amplify PMS and pre-period bloating ✅ The impact of carbs, salt and strength training on the scale ✅ This episode is your reminder that your body is responsive – not broken. Understanding what drives these fluctuations is incredibly freeing. It allows you to stop panicking, stop over-correcting, and instead take the right steps to stabilise things while continuing to move forward with your…

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