10 Common Seizure Triggers and How to Handle Them
10 Common Seizure Triggers and How to Manage Them
Living with epilepsy means learning to understand your own brain — and one of the most empowering things you can do is identify what triggers your seizures. Not everyone has the same triggers, and for many people it's a combination of factors rather than a single cause. But recognising the patterns puts you back in control.
Around 633,000 people in the UK are currently living with epilepsy.[1] For many of them, seizures don't happen randomly — they follow a pattern that, with awareness and planning, can be better managed. This guide covers the ten most commonly reported seizure triggers, what the research says about each one, and practical steps you can take today.
How Common Are These Triggers?
Approximate percentage of people with epilepsy reporting each trigger, based on published patient surveys.
Trigger Prevalence — % of epilepsy patients reporting each trigger
Sources: Epilepsy Society; Epilepsy Action; peer-reviewed patient surveys. Figures are approximate and represent reported trigger prevalence across published studies. Individual triggers vary widely between people.
The 10 Triggers Explained
Jacob Drew, NuroEase founder and epilepsy advocate, shares what research says about each trigger — and what you can actually do about it.
Sleep deprivation is one of the most well-established seizure triggers i myself have realised the importance and role that sleep has in epilepsy. Research shows it acts as a precipitant in roughly 27–28% of patients with generalised and focal epilepsies alike.[4] Sleep does more than rest the body — it regulates brain activity, consolidates neural pathways, and plays a direct role in seizure threshold. When you're sleep-deprived, the brain becomes hyperexcitable, making a seizure significantly more likely. Even a single disrupted night can have a measurable effect for some people.
Source: Epilepsy Society — Sleep and Epilepsy; PMC — Sleep Deprivation and Epilepsy [4]
Management Tips
- Maintain a consistent sleep schedule — wake and sleep at the same time even at weekends
- Aim for 7–9 hours of quality sleep per night
- Avoid caffeine within 6 hours of bedtime and limit screen use if possible before sleep, if this is not possible due to different curcumstances then glasses that block blue light would be a good option to reduce the effects.
In patient surveys, stress consistently ranks as the single most commonly reported seizure trigger.[3] The relationship between stress and seizures is bidirectional — stress can trigger seizures, and the fear of having seizures causes more stress. This cycle can be difficult to break. Physiologically, stress elevates cortisol levels, which disrupts the balance of excitatory and inhibitory neurotransmitters in the brain. Chronic anxiety keeps the nervous system in a heightened state, lowering the threshold at which a seizure can occur.
Source: Epilepsy Action — Epilepsy may be linked to sleep and stress; Epilepsy Society [3]
Management Tips
- Practise meditation, deep breathing exercises, or yoga regularly — not just when stress peaks
- Build structured rest into busy days; anticipate high-stress periods and prepare for them
- Consider counselling, CBT, or epilepsy support groups — talking helps more than most people expect
"Understanding your triggers doesn't limit your life — it gives you the map to navigate it better."
— NuroEaseAlcohol has a complex relationship with seizures. In the short term it raises the seizure threshold — but as it leaves the body, the threshold drops sharply, making the period 6–48 hours after drinking a high-risk window.[6] Research has shown that people with epilepsy who use alcohol report seizure worsening at a rate of around 18%, and chronic alcohol use is cited in 10–25% of newly diagnosed adult epilepsy cases.[6] Recreational drugs carry similar or greater risks, with many substances directly interfering with anti-seizure medications.
Source: PMC — Alcohol Use and Seizures in Patients with Epilepsy [6]
Management Tips
- Limit or avoid alcohol entirely — even moderate amounts can affect seizure control
- Never use recreational drugs; many interact with anti-seizure medications
- If you do drink, speak to your doctor about safe levels and ensure you stay well hydrated
For people whose epilepsy is otherwise well controlled, missing a dose of anti-seizure medication is one of the most common reasons a seizure returns.[2] Anti-seizure medications work by maintaining a consistent level of protection — even a single missed dose can cause that level to dip below the point where it's effective. This is particularly important to understand when travelling, during illness, or in periods of disrupted routine when it's easy to forget.
Source: Epilepsy Action — Seizure Triggers; Epilepsy Society [2]
Management Tips
- Use a daily pill organiser and set a phone alarm at the same time each day
- Keep a small backup supply when travelling or away from home
- Contact your healthcare provider promptly if you've missed doses — never double up without advice
Photosensitive epilepsy — where seizures are triggered by flashing, flickering or patterned light — affects approximately 3–5% of people with epilepsy.[2] While it is less common than many people assume, it receives significant public attention due to its association with video games, concerts and television. Importantly, photosensitivity is more common in younger people and often reduces with age. Not all light sensitivity is the same — individual thresholds vary considerably. I was once misdiagnosed and told I had photosensitivity, which later turned out to be incorrect. Still, it’s always important to follow the guidance and treatment plans provided by your neurologist, even if your experience differs from general advice
Source: Epilepsy Society — Seizure Triggers [2]
Management Tips
- Wear polarised sunglasses outdoors and blue-light filtering glasses for screen use
- Avoid known trigger environments such as strobe lighting at events
- Adjust screen brightness and refresh rates; use anti-glare filters where possible
When the body is fighting infection or managing a fever, the brain's regulatory systems come under extra strain. Fever in particular is a well-documented seizure trigger — elevated body temperature affects neuronal firing rates and can disrupt the balance of electrical activity in the brain. Beyond fever, even a common cold can disrupt sleep, increase stress hormones, and cause dehydration — all of which compound seizure risk independently. Staying on top of illness early is therefore important for epilepsy management, not just general health.
Source: Epilepsy Society — Seizure Triggers; NHS Guidance on Epilepsy [2]
Management Tips
- Treat fever promptly with appropriate medication and rest
- Maintain hydration when unwell — illness accelerates fluid loss
- Keep your neurologist or GP informed about any significant illness, particularly if seizure frequency changes
Hormonal fluctuations have a profound effect on seizure threshold. Oestrogen is neurologically excitatory — it lowers the seizure threshold — while progesterone has an inhibitory, protective effect.[5] The condition known as catamenial epilepsy, in which seizures cluster around specific points in the menstrual cycle, affects an estimated 30–50% of women with epilepsy.[5] Hormonal changes during pregnancy, perimenopause and menopause can also alter seizure patterns significantly. This is a frequently underdiagnosed aspect of epilepsy management.
Source: Epilepsy Foundation — Menstruation as a Seizure Trigger; The Permanente Journal [5]
Management Tips
- Track your menstrual cycle alongside seizure activity to identify patterns over several months
- Speak to your neurologist about catamenial epilepsy — adjusting medication timing may help
- Pay particular attention to sleep and stress management during hormonally volatile periods
Beyond psychological stress, physical overstimulation — crowded spaces, loud environments, flashing crowds, or intense sensory input — can independently trigger seizures in susceptible individuals. This is sometimes referred to as reflex epilepsy, where a specific sensory stimulus reliably provokes a seizure response. More broadly, environments that demand sustained high levels of sensory processing can exhaust neurological resources and lower seizure threshold. Planning ahead for demanding environments is an underutilised but effective strategy.
Source: Epilepsy Society — Seizure Triggers [2]
Management Tips
- Identify environments that reliably feel overwhelming and plan how to manage or limit exposure
- Use earplugs or noise-cancelling headphones in crowded or loud spaces
- Build in regular quiet breaks during events or demanding days — recovery time matters
While food allergies and intolerances are an individual matter, the relationship between blood sugar and seizures is well established. Hypoglycaemia — low blood sugar — can trigger seizures in some people with epilepsy, even those without diabetes, For me, sugar has always been a tricky trigger. I noticed that after days when I consumed more sweets than usual—like desserts, sugary drinks, or even energy bars—I felt more jittery and on edge. Sometimes this would lead to focal or mild seizures that I could have otherwise avoided. Skipping meals creates blood sugar instability that puts the brain under additional stress. Nutritional deficiencies, particularly in magnesium and Vitamin D, have also been associated with altered seizure thresholds in published research.[7] The ketogenic diet, a high-fat very-low-carbohydrate approach, has strong clinical evidence as a therapeutic intervention for drug-resistant epilepsy.
Source: Kossoff et al. — Dietary Therapies for Epilepsy; Epilepsy Society nutrition guidance [7]
Management Tips
- Maintain regular meal times and avoid prolonged periods without eating
- Follow any diet plan recommended by your neurologist or dietitian
- Discuss nutritional supplements — such as Vitamin D — with your doctor if deficiency is suspected
The brain depends on a precise balance of electrolytes — sodium, potassium, magnesium and calcium — to regulate its electrical activity. When fluid levels drop, this balance shifts, and neuronal communication becomes unstable, increasing the likelihood of abnormal electrical discharges.[6] Dehydration is also compounded by alcohol consumption, illness, hot weather, and exercise — all situations where people with epilepsy should be particularly attentive to their fluid intake. It is a simple, controllable risk factor that is frequently overlooked.
Source: Aether Health — Can Dehydration Cause Seizures?; Epilepsy Society [6]
Management Tips
- Drink water consistently throughout the day — aim for 6–8 glasses minimum
- Increase hydration before and during exercise, hot weather, or illness
- Limit excessive caffeine and sugary drinks, which can accelerate fluid loss
NuroEase
Take the Next Step in Managing Your Epilepsy
Understanding your triggers is just the beginning. NuroEase offers practical, personalised support — from one-to-one consultations to educational resources and high-quality supplements designed with your neurological health in mind.
References & Sources
- Epilepsy Research Institute UK — Epilepsy Statistics UK; Seizure: European Journal of Epilepsy, 2023 (633,000 people in UK living with epilepsy)
- Epilepsy Society — Seizure Triggers; Epilepsy Action — Seizure Triggers
- Epilepsy Action — Epilepsy may be linked to sleep and stress (stress as most commonly reported trigger)
- Epilepsy Society — Sleep and Epilepsy; PMC — Sleep Deprivation and Epilepsy
- The Permanente Journal — A Clinical Approach to Catamenial Epilepsy; Epilepsy Foundation — Menstruation as a Seizure Trigger (30–50% of women with epilepsy)
- PMC — Alcohol Use and Alcohol-Related Seizures in Patients with Epilepsy; Aether Health — Can Dehydration Cause Seizures?
- Kossoff EH et al. — Dietary Therapies for Epilepsy (2009); Epilepsy Society — Nutrition and Epilepsy guidance