Cortisol gets a bad reputation, but it’s a vital hormone — the problem is when it stays elevated for too long. Ashwagandha is one of the few supplements with real evidence behind its calming effect. Here’s the science, simply.
What cortisol actually does
Cortisol is your body’s main stress hormone. In short bursts it’s helpful — it wakes you up and helps you respond to challenges. But chronic stress keeps it high, which can disrupt sleep, mood, energy and appetite.
How ashwagandha helps
Multiple randomised trials have found that standardised ashwagandha extract reduces morning cortisol and self-reported stress compared with placebo. It works gradually, helping to take the edge off a constantly ‘switched on’ nervous system.
What to expect — and what to pair it with
Ashwagandha isn’t a sedative; it works best taken consistently over several weeks. Many women combine it with magnesium for stress and sleep — the pairing in our Stress Less Bundle.
Try Simple Ashwagandha daily, and read more on supplements for stress.
Related reading
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This article is for general information and isn’t medical advice. If you’re pregnant, breastfeeding, or taking medication, check with your GP before starting a new supplement.