
Cortisol and stress: what it does to your body
Cortisol is often called "the stress hormone", but it does much more than that. In this article you'll read how your daily cortisol rhythm works, what prolonged busy periods do to it, and which daily habits help you bring rhythm back into your day.
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What is cortisol?
Cortisol is a hormone made by your adrenal glands, on a signal from your brain. It plays a role in your blood sugar, blood pressure, immune system and your sleep-wake rhythm, among other things.
Cortisol follows a fixed daily rhythm: highest shortly after waking up, so you get going, then gradually lower, and lowest around bedtime, so you can sleep.
Short-term versus long-term stress
Short-term stress, such as a deadline or a difficult conversation, is normal: your body gears up for a moment and then back down. It gets harder when busy periods last for months and recovery structurally gets too little room. Then your daily rhythm can get disrupted: you struggle to get going in the morning and feel restless in the evening.
How to bring rhythm back into your day
- Fixed times: get up and go to bed at around the same time, weekends included.
- Morning daylight: a short walk outside helps your daily rhythm get going.
- Gentle exercise: walking, cycling, yoga or light strength training. In busy periods it doesn't need to be intense.
- Regular meals: with protein, fibre and healthy fats, and without going too long without eating.
- Caffeine in moderation: no more than 400 mg a day (about 4 cups of coffee) and preferably not after 2 pm.
- A daily moment of rest: 10 to 20 minutes of breathing exercises, meditation, journaling or a walk in nature.
Sleep is the foundation. How to build a fixed evening routine is explained in Sleep and stress: how to break the cycle.
Nutrition and magnesium
A varied diet remains the starting point. Magnesium is a mineral worth paying attention to: it is found in nuts, seeds, pulses, wholegrain products and green vegetables. It is officially established that magnesium contributes to normal functioning of the nervous system, normal psychological function and the reduction of tiredness and fatigue.
Want to make it easy? Plantforce Vegan Ionic Magnesium provides 250 mg of magnesium per teaspoon (67% of the reference intake). You stir it into a glass of water, in Passion Fruit and Natural flavours. With the value pack of 3 tubs you have more than six months' supply, at a lower price than buying separately.
And adaptogens?
Plants such as ashwagandha, rhodiola, maca and reishi have a long history of use in various herbal traditions. No health claims have been approved for these plants in the EU. Read more about their background in Long-term stress and recovery.
Frequently asked questions about cortisol and stress
Does adrenal fatigue really exist?
Does adrenal fatigue really exist?
The term adrenal fatigue is medically disputed. Doctors do recognise adrenal insufficiency (such as Addison's disease) as a condition. Have you had symptoms for a long time? Then have yourself examined by your GP.
Can I have my cortisol measured?
Can I have my cortisol measured?
Yes. Your GP can have cortisol measured in your blood, usually in the morning. There are also saliva tests with several measurements spread over the day. Discuss with your GP which test suits your situation.
How long does it take before my daily rhythm is back on track?
How long does it take before my daily rhythm is back on track?
That differs per person. New habits usually take a few weeks to settle in, and after a long busy period recovery can take months. If your symptoms persist or get worse, see your GP.
What is known about magnesium and stress?
What is known about magnesium and stress?
Magnesium contributes to normal psychological function and normal functioning of the nervous system. It is not a remedy for stress: the basics remain enough sleep, exercise, good nutrition and moments of rest.
Can I combine supplements with medication?
Can I combine supplements with medication?
Always consult your doctor or pharmacist first if you take medication. Some herbs, such as St John's wort, can affect how medicines work.
In summary
Cortisol is not the enemy
Cortisol is an essential hormone with its own daily rhythm. Only when busy periods last long and recovery gets too little room does that rhythm get disrupted. Recovery starts with the basics: sleep, exercise, regular meals and fixed moments of rest. A food supplement can be an addition, but does not replace those basics.
Want to start with a fixed moment for yourself? Try Plantforce Vegan Magnesium or choose the value pack of 3 tubs.
Disclaimer: This article is for information only and does not replace medical advice. A food supplement is not a substitute for a varied and balanced diet and a healthy lifestyle. If you take medication, are pregnant or breastfeeding, consult your doctor or pharmacist. Do not exceed the recommended daily amount. Keep out of reach of young children.
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