Do you ever feel like your "alert" button is permanently jammed? You might be physically sitting at your desk or on your sofa, but internally, your heart is racing, your shoulders are hunched, and your mind is already three steps ahead, scanning for the next thing to go wrong.
This feeling of being constantly "on edge" is more than just a personality trait or a busy week. It's often a sign that your nervous system is stuck in a state of high alert, a physiological response to chronic stress, overstimulation, and a lack of recovery time.
In this guide, we explore why we feel so wired, how chronic stress impacts the body, and practical, nutrition-led ways to support a calmer, more resilient nervous system.

Understanding Your Nervous System: The 'Gas' and the 'Brake'
Your autonomic nervous system is divided into two main branches that act like the accelerator and the brake in a car:
- The Sympathetic Nervous System (SNS): This is your "fight or flight" mode. It's the gas pedal. When you sense a threat, whether it's a car swerving into your lane or a sharp email from your boss, the SNS floods your body with adrenaline and cortisol to prepare you for action.
- The Parasympathetic Nervous System (PNS): This is your "rest and digest" mode. It's the brake. When the threat passes, the PNS should take over, lowering your heart rate, supporting digestion, and helping you feel calm and safe.
The problem arises when the gas pedal gets stuck. In our modern, always-connected world, we face "micro-stresses" all day long: notifications, traffic, noise, news cycles, and endless to-do lists. If we don't intentionally activate the "brake," our bodies stay in a state of low-grade fight-or-flight, leaving us feeling anxious, tense, and exhausted.
The Signs of an Overworked Nervous System
When your nervous system is under constant pressure, it doesn't just feel like "stress." It shows up in your body and mind in subtle (and not-so-subtle) ways:
- Physical tension: Tight jaw, hunched shoulders, or unexplained muscle aches.
- Digestive issues: Bloating, "butterflies" in the stomach, or changes in bowel habits.
- Sleep disturbances: Difficulty falling asleep or waking in the early hours with racing thoughts.
- Emotional volatility: Feeling unusually irritable, tearful, or "snappy" with loved ones.
- Cognitive fog: Struggling to focus, make decisions, or remember simple details.
- Sensitivity: Feeling overwhelmed by loud noises, bright lights, or crowded spaces.
Lifestyle Tools to Activate the 'Brake'
Supporting your nervous system isn't just about what you take; it's about what you *do*. These simple habits help signal safety to your brain and activate your parasympathetic nervous system.
1. Master Your Breath
Your breath is the most direct way to communicate with your nervous system. When you're stressed, your breathing becomes shallow and fast. By intentionally slowing it down (especially the exhale) you send a physiological signal to your brain that you are safe. Try "box breathing" (inhale for 4, hold for 4, exhale for 4, hold for 4) for just two minutes.

2. Practice 'Digital Sunset'
Constant notifications and blue light keep your brain in a state of high alertness. Try to put your phone away at least an hour before bed. Use that time for reading, a warm bath, or gentle stretching instead.
3. Spend Time in Nature
Research consistently shows that spending time in green or blue spaces (parks, forests, or near water) reduces cortisol levels and supports nervous system balance. Even a 15-minute walk without your phone can make a difference.

4. Set Gentle Boundaries
If your nervous system is already overwhelmed, say "no" to extra commitments where you can. Protecting your downtime isn't selfish; it's necessary for recovery.
Nutrition for a Calmer You
The food you eat provides the building blocks for the neurotransmitters and hormones that regulate your mood and stress response.
Stabilise Your Blood Sugar
When your blood sugar crashes, your body perceives it as a stress event and releases cortisol to bring it back up. This can make you feel jittery, anxious, and irritable (often called being "hangry"). To avoid this, aim for balanced meals that include protein, healthy fats, and fibre-rich complex carbohydrates.
Focus on Magnesium-Rich Foods
Magnesium is often called "nature's tranquiliser" because of its role in nervous system function and muscle relaxation. Stress actually causes your body to excrete more magnesium, which can lead to a vicious cycle: stress depletes magnesium, and low magnesium makes you more sensitive to stress.
Boost your intake with:
- Dark leafy greens: Spinach, kale, and chard
- Nuts and seeds: Pumpkin seeds, almonds, and cashews
- Legumes: Black beans, lentils, and chickpeas
- Wholegrains: Oats, quinoa, and brown rice
- Dark chocolate: (At least 70% cocoa)
Support Your Gut-Brain Axis
About 90% of your serotonin (the "feel-good" neurotransmitter) is produced in your gut. Supporting your digestive health with fermented foods (like kefir, sauerkraut, or kimchi) and plenty of fibre helps support a healthy gut microbiome and, by extension, a calmer mind.
The Role of Targeted Supplementation
When lifestyle and diet aren't quite enough to soothe an overworked nervous system, certain supplements can provide extra support.
Before starting any new supplement, we recommend speaking to a qualified practitioner. We offer a free 1:1 consultation with a passionate herbalist from the Napiers team. They can listen to your unique needs and recommend a routine to support you. Book yours here.
Magnesium Glycinate for Emotional Balance
Napiers Magnesium Glycinate 20% is an ideal choice for those feeling on edge. This chelated form of magnesium is bound to glycine, an amino acid that has its own calming effects on the brain. Because it's highly bioavailable and gentle on the stomach, it's a reliable way to ensure you're meeting your magnesium needs during times of high stress or anxiety.
Take one capsule daily, ideally with a meal, to support normal psychological function and the healthy operation of your nervous system.
Topical Magnesium for Physical Tension
If your stress shows up as physical tension in your body, think tight neck, sore shoulders, or "fidgety" legs, topical magnesium can be incredibly soothing.
- Napiers Magnesium Oil Spray: Spritz directly onto areas of tension and massage in. The magnesium is absorbed through the skin, helping to ease muscle tightness and promote a sense of relaxation.
- Napiers All Natural Magnesium Gel: A more targeted option for specific areas of discomfort. It's cooling and supportive for tired, tense muscles.
- Napiers Magnesium Muscle & Sleep Cream: Perfect for an evening wind-down. The combination of magnesium and calming essential oils (lavender and ylang ylang) makes it a beautiful ritual for soothing both body and mind before bed.
When to Seek Help
Whilst nutrition and lifestyle changes are powerful tools, they aren't a replacement for professional medical or psychological support. If you're struggling with persistent anxiety, panic attacks, or feelings of being unable to cope, please reach out to your GP or a qualified practitioner.
There is no shame in seeking help, and there are many effective treatments and therapies available that can work alongside natural approaches.
Frequently Asked Questions
Can magnesium really help with anxiety?
Magnesium supports the normal functioning of the nervous system and psychological function. Whilst it's not a "cure" for clinical anxiety, many people find that maintaining healthy magnesium levels helps them feel calmer and more resilient to daily stress.
What is the best type of magnesium for the nervous system?
Magnesium glycinate (or bisglycinate) is widely considered one of the best forms for the nervous system. The glycine bond makes it highly absorbable and provides additional calming support for the brain.
How long does it take to feel the effects of magnesium?
Some people feel a sense of relaxation shortly after taking a well-absorbed magnesium supplement, particularly if they are significantly depleted. However, for most people, the benefits are cumulative and are best felt after 2-4 weeks of consistent use.
Is it better to take magnesium in the morning or evening?
If you're using magnesium to support a calm nervous system or better sleep, taking it in the evening (with dinner or before bed) is often preferred. However, it can be taken at any time of day as long as it's consistent.
Can I use magnesium spray if I have sensitive skin?
Pure magnesium oil can sometimes cause a slight tingling sensation on sensitive skin. If this happens, you can dilute it with water or try the Napiers Magnesium Muscle & Sleep Cream, which is designed to be gentler and more moisturising.
Final Thoughts: Small Steps to a Calmer You
Healing an overworked nervous system doesn't happen overnight. It's a practice of consistently choosing habits that signal safety to your body. Whether it's taking two minutes for box breathing, eating a balanced lunch, or incorporating a gentle magnesium supplement like Napiers Magnesium Glycinate 20%, every small choice adds up.
Be patient with yourself, protect your downtime, and remember that your body wants to be in a state of balance. By giving it the right tools—both internal and external—you can move from feeling "on edge" to feeling grounded and resilient.
References
- Boyle, N. B. et al. (2017). 'The effects of magnesium supplementation on subjective anxiety and stress—a systematic review', Nutrients, 9(5), p. 429.
- Kirkland, A. E. et al. (2018). 'The role of magnesium in neurological disorders', Nutrients, 10(6), p. 730.
- Pouteau, E. et al. (2018). 'Superiority of magnesium and vitamin B6 over magnesium alone on severe stress in healthy adults with low magnesemia: A randomized, single-blind clinical trial', PLOS ONE, 13(12), e0208454.
- Sartori, S. B. et al. (2012). 'Magnesium deficiency induces anxiety and HPA axis dysregulation: Modulation by therapeutic drug treatment', Neuropharmacology, 62(1), pp. 304–312.
- Tarleton, E. K. et al. (2017). 'Role of magnesium supplementation in the treatment of depression: A randomized clinical trial', PLOS ONE, 12(6), e0180067.
