Is Your Stress Normal? How Cortisol Affects Your Sleep, Cravings and Hormones

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"I'm just stressed." I hear this from almost every woman who comes to see me. And she's usually right. But what most of us don't realise is how much that stress is shaping our energy, sleep, cravings and even our hormones.

Some stress is completely normal, and even helpful. The problem is when it never switches off.

What stress actually does in your body

When you face a challenge, whether it's a deadline, an argument or a skipped meal, your body releases stress hormones, mainly adrenaline and cortisol. Your heart rate goes up, blood sugar rises to give you quick energy, and digestion slows down. This is your body doing exactly what it's designed to do.

Cortisol also follows a natural daily rhythm. It's meant to be highest in the morning to help you wake up, and lowest at night so you can wind down and sleep.

Short bursts of stress are fine. Your body rises to the challenge and then comes back to calm. But when stress is constant, that rhythm can get out of balance, and you start to feel it everywhere.

Signs your stress load is too high

  • Feeling "tired but wired", especially at night

  • Waking at 2 or 3am and struggling to get back to sleep

  • Needing coffee to get going and sugar to keep going

  • Cravings for salty or sweet foods in the afternoon

  • Weight gathering around the middle

  • Bloating, reflux or a sensitive gut

  • Feeling anxious, irritable or overwhelmed by small things

  • Catching every cold going around

Why stress hits harder in your late 30s and 40s

As you move into perimenopause, progesterone often starts to decline. Progesterone has a naturally calming effect and supports sleep, so when it drops, many women notice they feel more anxious and less able to cope with the same level of stress they handled easily before.

Add work, kids, ageing parents and a never-ending to-do list, and it's no surprise so many women feel like they're running on empty. It's not a lack of willpower. Your body is working with a different hormonal backdrop.

6 ways to bring your stress load down

1. Eat breakfast with protein. Skipping meals or running on coffee alone is a stress signal for your body. A breakfast with protein, fibre and healthy fats helps keep blood sugar and energy steadier through the morning.

2. Have your coffee after food. Caffeine on an empty stomach can make you feel more jittery and anxious. Try having it with or after breakfast, and keep it to the morning.

3. Get morning light. Five to ten minutes outside in the morning helps set your body clock, which supports a healthy cortisol rhythm and better sleep at night.

4. Move, but don't overdo it. Walking, strength training and yoga are great for stress. If you're exhausted, back-to-back intense workouts can add to the load rather than relieve it.

5. Use your breath. Slow breathing, especially with a longer exhale, tells your nervous system it's safe. Try breathing in for 4 and out for 6, for two minutes.

6. Protect your evenings. Dim the lights, put the phone away and create a wind-down routine. Your body needs signals that the day is over.

Try this today

Pick one habit and attach it to something you already do. For example: boil the kettle → three slow breaths, or finish lunch → a 10-minute walk outside. Small steps, repeated daily, are what create real change.

The bottom line

Stress is a normal part of life, but feeling constantly overwhelmed, exhausted and wired is not something you have to accept. When you support your body with steady meals, good sleep and regular moments of calm, it becomes much easier to handle whatever life throws at you.

Feeling like stress is running the show?

If you're tired, anxious or not sleeping well and wondering whether stress, hormones or both are behind it, I can help you work it out. Book your free initial assessment.

This article is for educational purposes and is not a substitute for medical advice. If you're experiencing ongoing anxiety, low mood or sleep problems, please talk to your doctor.

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