What are the long term effects of a grand mal seizure?
Andrew Mclaughlin
Published Apr 12, 2026
Long lasting seizures, or status epilepticus, may also cause brain damage or death. People with epilepsy are eight times more likely than people without it to experience certain other chronic conditions, including dementia, migraine, heart disease, and depression.
How long can a seizure last before brain damage?
A seizure that lasts longer than 5 minutes, or having more than 1 seizure within a 5 minutes period, without returning to a normal level of consciousness between episodes is called status epilepticus. This is a medical emergency that may lead to permanent brain damage or death.
Are grand mal seizures hereditary?
Most children of people with epilepsy do not develop seizures or epilepsy. However, since genes are passed down through families, it is possible. Epilepsy is more likely to occur in a brother or sister if the child with epilepsy has generalized seizures.
Can epilepsy transfer from one person to another?
Epilepsy is not contagious (you can’t catch it from someone who has it). It’s not passed down through families (inherited) in the same way that blue eyes or brown hair are. But someone who has a close relative with epilepsy has a slightly higher risk for it than somebody with no family history of seizures.
Can seizure cause permanent damage?
However, experiencing a prolonged seizure can cause injury. These types of seizures are called status epilepticus. Permanent neurological damage can happen after about 30 minutes of status epilepticus due to prolonged abnormal electrical activity in the affected area of the brain.
What is the life expectancy of someone with epilepsy?
Reduction in life expectancy can be up to 2 years for people with a diagnosis of idiopathic/cryptogenic epilepsy, and the reduction can be up to 10 years in people with symptomatic epilepsy. Reductions in life expectancy are highest at the time of diagnosis and diminish with time.
What does a grand mal seizure do to your brain?
A grand mal seizure causes a loss of consciousness and violent muscle contractions. It’s the type of seizure most people picture when they think about seizures. A grand mal seizure — also known as a generalized tonic-clonic seizure — is caused by abnormal electrical activity throughout the brain.
Is seizure genetic disorder?
Seizures may be the result of genetics or a brain injury, but often their cause is unknown. The words “seizure disorder” and “epilepsy” are often used interchangeably. However, “provoked” seizures, such as those due to a fever in a young child or severe hypoglycemia, are not considered to be forms of epilepsy.
Is exercise good for epilepsy?
Exercise has important benefits for people with epilepsy and can contribute to improved seizure control. Physical exercise rarely triggers seizures. Take all necessary safety precautions while exercising. Anti-epileptic drugs can affect sporting performance.
Do seizures shorten your life?
How long does it take to fully recover from a grand mal seizure?
What to Do If Someone Has a Tonic-Clonic (Grand Mal) Seizure. Witnessing a person having a tonic-clonic seizure can be upsetting, but it’s important to remember that most seizures resolve on their own after one to three minutes.
Can you outgrow seizure disorder?
Many kids outgrow this neurological disorder, which is characterized by two or more seizures that are separated from each other by more than 24 hours. For other children, epilepsy may be a lifelong challenge. It’s important to first get an accurate diagnosis if you suspect your child might have epilepsy.
Can I marry a girl with epilepsy?
There is no reason why an epileptic person cannot get married and have children and lead a normal life. However, correct diagnosis is required as there are several kinds of epileptic seizures. Proper medication and precautions need to be taken though.