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September 7, 2025 7 mins

Stress and sleep are like a toxic duo, one feeds the other, leaving you staring at the ceiling at 2 a.m. wondering why your brain won’t shut up. In this episode of Untamed and Unfiltered Wellness, we’re breaking down the science of the stress-sleep cycle:

  • How your HPA axis flips the switch and pumps out cortisol
  • Why cortisol blocks melatonin and messes with your circadian rhythm
  • The role your amygdala and nervous system play in racing thoughts and 3 a.m. wake-ups
  • How poor sleep makes you more reactive and stressed the next day (it’s a vicious cycle, but not a hopeless one)

By the end, you’ll finally get why stress hijacks your nights and what awareness can do to crack the cycle open.

This is Part 1 of my three part Stress + Sleep series. In Episode 20, we’ll talk about what you can actually do at night to calm your system and get some rest.

Free Substack subscription: https://oliviabellwellness.substack.com

Website: OliviaBellWellness.com

I hope you find some time today for some peace, some plants and some paws!

☮️🌿🐾

Jo

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