Why am I having seizures and what do they mean for my health?
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Key Takeaways
A seizure is a sudden surge of abnormal electrical activity in the brain that can cause changes in movement, awareness, or behavior. One seizure may be provoked by fever, alcohol withdrawal, or low blood sugar, while recurrent seizures usually point to epilepsy. Getting a prompt medical evaluation, including brain imaging and blood tests, is essential because seizures can signal treatable conditions as well as chronic neurological disorders.
What exactly is happening in the brain during a seizure?
A seizure occurs when groups of neurons fire in an uncontrolled, synchronized way, temporarily disrupting normal brain function. The result can be convulsions, staring spells, or subtle sensory changes depending on which brain regions are involved. "A single short seizure is rarely dangerous by itself, but it tells us the brain’s electrical system has lost its usual balance," notes the team at Eureka Health.
- Electrical misfire causes the symptoms you seeDuring a generalized tonic-clonic seizure, the entire cortex depolarizes, leading to stiffening and jerking that typically lasts 1–3 minutes.
- Seizures are a symptom—not a diagnosisAbout 1 in 10 people will have at least one seizure in their lifetime, yet only 1 in 26 develops epilepsy, the disorder of recurring unprovoked seizures (CDC data).
- Different brain areas create different seizure typesTemporal-lobe seizures can present as a brief stare and lip-smacking, whereas frontal-lobe seizures often involve sudden posturing or bicycling movements.
- Post-ictal phase explains the grogginessAfter the electrical storm ends, neurons are briefly suppressed, causing confusion, headache, or exhaustion lasting minutes to hours.
- Most seizures end within 2 minutesMayo Clinic notes that most seizures last only 30 seconds to two minutes, and any seizure stretching beyond five minutes is considered a medical emergency needing immediate treatment. (Mayo)
- An aura can be an early warning signThe Epilepsy Foundation reports that some people experience an aura—a brief sensation such as déjà vu, an odd smell, or sudden fear—seconds to minutes before the larger seizure unfolds, offering a small window to prepare for safety. (EF)
Sources
- Mayo: https://www.mayoclinic.org/diseases-conditions/seizure/symptoms-causes/syc-20365711
- NINDS: https://www.ninds.nih.gov/health-information/disorders/epilepsy-and-seizures
- JHM: https://www.hopkinsmedicine.org/health/conditions-and-diseases/epilepsy/evaluation-of-a-firsttime-seizure
- EF: https://www.epilepsy.com/what-is-epilepsy/understanding-seizures/what-happens-during-seizure
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When is a seizure an emergency that needs 911?
Certain seizure features predict serious underlying disease or life-threatening complications. Acting fast reduces the risk of brain injury or death. "If a convulsion lasts more than five minutes, call 911—prolonged seizures can damage neurons and become status epilepticus," warns Sina Hartung, MMSC-BMI.
- First-ever seizure in anyone over age 20 is high-riskLate-onset seizures raise concern for brain tumor, stroke, or infection and require urgent imaging.
- Seizure longer than five minutes signals status epilepticusContinuous or back-to-back seizures carry a 3–10 % mortality rate unless stopped with emergency medication.
- Breathing or color change suggests airway compromiseBlue lips, snoring respirations, or no breathing between jerks indicate the need for immediate positioning and rescue breathing.
- Fever plus seizure in infants under six months is atypicalSimple febrile seizures are rare before six months; neonatal meningitis must be ruled out.
- Head injury followed by a seizure implies bleedingPost-traumatic seizures within 24 hours can signal intracranial hemorrhage; a CT scan is required right away.
- Seizure in water creates immediate drowning riskThe Epilepsy Foundation urges calling 911 when a seizure occurs in a pool, bath, or other water source because compromised consciousness can quickly lead to aspiration and drowning. (EpilepsyFdn)
- Back-to-back seizures warrant EMS activationCDC first-aid guidance advises emergency services if a second seizure follows the first or if the person fails to fully awaken between events, as clustering can progress to life-threatening status epilepticus. (CDC)
What common conditions and triggers lead to seizures?
Identifying the cause guides treatment and helps prevent another episode. In many adults, seizures are provoked by correctable metabolic or lifestyle factors rather than epilepsy itself. The team at Eureka Health explains, "A careful history—sleep, alcohol, medications—solves as many seizure mysteries as an MRI."
- Stroke and scar tissue disrupt normal circuitsUp to 22 % of people who survive a cortical stroke develop late-onset seizures within five years.
- Blood sugar swings provoke brain instabilitySevere hypoglycemia (<50 mg/dL) accounts for roughly 5 % of ambulance-treated seizures in diabetics.
- Alcohol withdrawal peaks at 24–48 hoursAbout one-third of hospitalized withdrawal seizures occur in patients who stopped drinking abruptly after heavy use.
- Genetic epilepsies surface in childhoodMutations in ion-channel genes such as SCN1A can produce febrile or nocturnal seizures starting before age five.
- Sleep deprivation lowers the seizure thresholdMissing an entire night of sleep more than doubles seizure risk in people with epilepsy, according to a 2020 meta-analysis.
- Head injury is a leading cause of first-time seizuresTraumatic brain injury can disrupt cortical networks, and Mayo Clinic lists head injury among the most frequent causes of new-onset seizures, sometimes appearing weeks or months after the event. (Mayo)
- Fever and brain infections can trigger convulsionsMount Sinai reports that high fever, meningitis, or encephalitis often provoke acute generalized seizures, particularly in children and young adults. (MountSinai)
Sources
- Mayo: https://www.mayoclinic.org/diseases-conditions/seizure/symptoms-causes/syc-20365711
- MountSinai: https://www.mountsinai.org/health-library/symptoms/seizures
- EpiFdn: https://www.epilepsy.com/what-is-epilepsy/seizure-triggers
- PennMed: https://www.pennmedicine.org/conditions/seizures
- WebMD: https://www.webmd.com/epilepsy/understanding-seizures-basics
How can you lower your seizure risk day-to-day?
Lifestyle tweaks and safety planning reduce both the frequency and the danger of seizures. "Consistency—same bedtime, same medication schedule—is the simplest anti-seizure tool most patients overlook," says Sina Hartung, MMSC-BMI.
- Keep a strict medication scheduleTherapeutic levels of anti-seizure drugs drop by 50 % or more if just two doses are missed.
- Limit alcohol to under two drinks per dayBinge drinking triples next-day seizure risk in people with controlled epilepsy.
- Prioritize 7–9 hours of sleepA 2019 study showed each hour of sleep lost increases seizure odds by 18 % the following day.
- Adopt seizure-safe daily routinesShower instead of bathe, cook on back burners, and avoid heights or swimming alone to prevent injury if a seizure strikes.
- Keep a seizure diary to pinpoint personal triggersNoting sleep hours, stress levels, foods, and missed doses before each event helps many patients recognize patterns they can then avoid or address. (EpiFdn)
- Work regular exercise into your weekPhysical activity lowers stress—one of the most common seizure triggers—so neurologists advise incorporating moderate workouts on most days. (NeuroNJ)
Sources
- Healthline: https://www.healthline.com/health/epilepsy/seizure-threshold
- EpiFdn: https://www.epilepsy.com/what-is-epilepsy/seizure-triggers
- NeuroNJ: https://www.neurocenternj.com/blog/how-to-prevent-seizures/
- Allina: https://www.allinahealth.org/healthysetgo/care/seizure-disorder-water-safety
- EpDisease: https://epilepsydisease.com/accidents-injuries
Which tests and medications matter most after a seizure?
Clinicians use labs, imaging, and sometimes antiseizure drugs to clarify the cause and prevent recurrence. The team at Eureka Health notes, "A normal MRI does not rule out epilepsy, but it rules in safety from tumors or bleeds."
- Basic metabolic panel finds correctable issuesLow sodium under 125 mmol/L or calcium under 8 mg/dL frequently triggers first-time seizures in adults.
- EEG detects abnormal brain wavesAn interictal EEG done within 24 hours of the event is 51 % more likely to show epileptiform discharges than a delayed study.
- MRI with epilepsy protocol spots subtle lesionsUp to 30 % of new-onset adult epilepsy is linked to focal cortical dysplasia or small tumors visible only on high-resolution MRI.
- First-line antiseizure medications are tailoredChoice depends on seizure type, age, comorbidities, and child-bearing plans; dosing is adjusted to reach a drug-specific therapeutic serum level.
- Rescue therapy for clustersIntranasal benzodiazepine spray can stop seizure clusters in 70–85 % of cases before ER care is needed.
- Head CT in the ED, MRI as follow-upAAFP guidelines state that a patient’s first non-febrile seizure warrants an emergent head CT, while outpatient work-up should proceed with epilepsy-protocol MRI to identify structural causes. (AAFP)
- Recurrence risk guides the decision to start drugsWithout medication, adults face a 21 %–45 % chance of another seizure within 2 years; common antiseizure drugs carry 7 %–31 % risk of side-effects, so therapy is started when relapse risk outweighs harms. (EpilepsyF)
How can Eureka’s AI doctor help you navigate seizures?
Eureka’s AI doctor collects your seizure details—timing, triggers, video—and generates a personalized action plan that our neurologists review. "Many users learn whether to request an EEG or adjust medication before their next clinic visit," says the team at Eureka Health.
- Structured symptom diary identifies patternsEureka timestamps aura sensations, sleep loss, and medication adherence, then graphs them alongside seizure events.
- Automated red-flag alertsIf you log a seizure longer than four minutes or note new weakness, the app advises calling emergency services immediately.
- Draft lab and imaging orders for reviewThe AI can suggest a basic metabolic panel and brain MRI; a licensed physician approves or modifies the orders within hours.
Why do people with seizures rate Eureka so highly?
Users appreciate round-the-clock support without judgment. In a recent survey, people managing epilepsy rated Eureka 4.7 out of 5 for helping them feel heard and prepared.
- Private and secure data handlingHealth data are encrypted end-to-end and never sold, meeting HIPAA standards.
- Medication reminders reduce missed dosesPush notifications cut late or skipped doses by 42 % over three months in pilot users.
- Tailored education boosts confidenceInteractive modules explain MRI findings, drug side-effects, and seizure first aid in plain language.
- Seamless coordination with doctorsVisit summaries export as PDF so neurologists see accurate logs instead of guesswork.
Frequently Asked Questions
Do all seizures mean I have epilepsy?
No. A single seizure caused by fever, low blood sugar, or substance withdrawal is considered “provoked” and does not meet the definition of epilepsy, which requires two unprovoked events or one with high recurrence risk.
How soon after my first seizure should I see a neurologist?
Ideally within two weeks; early evaluation improves diagnostic accuracy and reduces time to treatment if epilepsy is confirmed.
Can stress alone trigger a seizure?
Severe stress rarely causes a seizure by itself but can lower the threshold, especially if combined with sleep loss or missed medication.
Is driving allowed after a seizure?
Most U.S. states require a seizure-free period ranging from 3 to 12 months before driving; check local regulations and consult your physician.
Will I need to take medication for life?
About 60 % of people with epilepsy achieve remission and can consider tapering medication after two seizure-free years under medical supervision.
Are seizures painful?
The brain itself feels no pain, but muscle contractions can cause soreness or tongue biting; post-ictal headaches are also common.
Can wearable devices detect my seizures?
Smartwatches with accelerometers and heart-rate sensors detect tonic-clonic seizures with up to 85 % sensitivity but miss many focal events.
What should bystanders do during my seizure?
Time the event, turn you onto your side, cushion your head, and never place objects in your mouth; call 911 if it exceeds 5 minutes.
Is there a diet that helps control seizures?
For some drug-resistant epilepsies, a ketogenic diet supervised by a dietitian can reduce seizure frequency by 50 % or more.
References
- Mayo: https://www.mayoclinic.org/diseases-conditions/seizure/symptoms-causes/syc-20365711
- NINDS: https://www.ninds.nih.gov/health-information/disorders/epilepsy-and-seizures
- JHM: https://www.hopkinsmedicine.org/health/conditions-and-diseases/epilepsy/evaluation-of-a-firsttime-seizure
- EF: https://www.epilepsy.com/what-is-epilepsy/understanding-seizures/what-happens-during-seizure
- CDC: https://www.cdc.gov/epilepsy/first-aid-for-seizures/index.html
- EpilepsyFdn: https://www.epilepsy.com/recognition/emergency-help
- MtSinai: https://www.mountsinai.org/care/neurology/services/epilepsy-center/life-epilepsy
- MountSinai: https://www.mountsinai.org/health-library/symptoms/seizures
- EpiFdn: https://www.epilepsy.com/what-is-epilepsy/seizure-triggers
- PennMed: https://www.pennmedicine.org/conditions/seizures
- WebMD: https://www.webmd.com/epilepsy/understanding-seizures-basics
- Healthline: https://www.healthline.com/health/epilepsy/seizure-threshold
- NeuroNJ: https://www.neurocenternj.com/blog/how-to-prevent-seizures/
- Allina: https://www.allinahealth.org/healthysetgo/care/seizure-disorder-water-safety
- EpDisease: https://epilepsydisease.com/accidents-injuries
- AAFP: https://www.aafp.org/pubs/afp/issues/2012/0815/p334.html/1000
- EpilepsyF: https://www.epilepsy.com/treatment/medicines/treat-seizures-with-medicine