What is the main cause of a seizure?

Anything that interrupts the normal connections between nerve cells in the brain can cause a seizure. This includes a high fever, high or low blood sugar, alcohol or drug withdrawal, or a brain concussion. But when a person has 2 or more seizures with no known cause, this is diagnosed as epilepsy.


What is the number one cause of seizures?

The most common cause of seizures is epilepsy. But not every person who has a seizure has epilepsy. Sometimes seizures may be caused or triggered by: High fever, which can be associated with an infection such as meningitis.

What are the 3 most common causes of seizures in adults?

Seizures in adults with no seizure history can be caused by a number of factors ranging from high blood pressure, drug abuse and toxic exposures to brain injury, brain infection (encephalitis) and heart disease.


What are 5 causes of seizures?

Causes
  • Genetic influence. Some types of epilepsy, which are categorized by the type of seizure you experience or the part of the brain that is affected, run in families. ...
  • Head trauma. ...
  • Brain abnormalities. ...
  • Infections. ...
  • Prenatal injury. ...
  • Developmental disorders.


What are the first signs of a seizure?

People with partial seizures may experience the following signs seconds or minutes before the actual seizure:
  • Unusual smells, tastes, sounds, or sensations.
  • Nausea.
  • A Déjà vu feeling (you feel like you are experiencing something that has occurred before)
  • Intense fear and panic.


What causes seizures, and how can we treat them? - Christopher E. Gaw



How to prevent a seizure?

How to Prevent Seizures
  1. Take All Medication as Prescribed. Anti-epileptic medications can be very effective at helping some people reduce or even eliminate seizures. ...
  2. Sleep. ...
  3. Eat Regular Meals. ...
  4. Avoid Alcohol and Drugs. ...
  5. Exercise. ...
  6. Pay Attention to Fevers. ...
  7. Avoid Flashing Lights. ...
  8. Find a Good Neurologist.


What do you feel right before a seizure?

An aura or warning is the first symptom of a seizure and is considered part of the seizure. Often the aura is an indescribable feeling. Other times it's easy to recognize and may be a change in feeling, sensation, thought, or behavior that is similar each time a seizure occurs.

Can anything trigger a seizure?

Triggers are situations that can bring on a seizure in some people with epilepsy. Some people's seizures are brought on by certain situations. Triggers can differ from person to person, but common triggers include tiredness and lack of sleep, stress, alcohol, and not taking medication.


Can stress cause a seizure?

Emotional stress also can lead to seizures. Emotional stress is usually related to a situation or event that has personal meaning to you. It may be a situation in which you feel a loss of control. In particular, the kind of emotional stress that leads to most seizures is worry or fear.

Where do most seizures start?

The temporal lobes are the areas of the brain that most commonly give rise to seizures. The mesial portion (middle) of both temporal lobes is very important in epilepsy — it is frequently the source of seizures and can be prone to damage or scarring.

Can dehydration cause a seizure?

Seizures can result from severe imbalances in electrolytes due to dehydration. Dehydration can reduce the amount of blood in the body, which can put strain on the heart and cause shock.


What causes seizures in adults with no history?

It's possible for an adult without a history of epilepsy to experience a seizure. Potential causes include central nervous system infections, brain tumors, stroke, and brain injuries. The use or stopping of certain substances, including alcohol, may also trigger a seizure.

What happens to the brain during a seizure?

In epilepsy the brain's electrical rhythms have a tendency to become imbalanced, resulting in recurrent seizures. In patients with seizures, the normal electrical pattern is disrupted by sudden and synchronized bursts of electrical energy that may briefly affect their consciousness, movements or sensations.

Who is most likely to have a seizure?

Seizures and epilepsy are more common in young children and older people. About 1 in 100 people in the U.S. has had a single unprovoked seizure or has been diagnosed with epilepsy. 1 in 26 people will develop epilepsy in their lifetime. People with certain conditions may be at greater risk.


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.

Can a seizure cause brain damage?

Prolonged seizures are clearly capable of injuring the brain. Isolated, brief seizures are likely to cause negative changes in brain function and possibly loss of specific brain cells.

What happens after a seizure?

The seizure normally stops after a few minutes, but some last longer. Afterwards, you may have a headache or difficulty remembering what happened and feel tired or confused.


Can lack of sleep cause a seizure?

Yes, it can. Seizures are very sensitive to sleep patterns. Some people have their first and only seizures after an "all-nighter" at college or after not sleeping well for long periods. If you have epilepsy, lack of "good sleep" makes most people more likely to have seizures.

How long does it take to feel normal after a seizure?

Ending. As the seizure ends, the postictal phase occurs - this is the recovery period after the seizure. Some people recover immediately while others may take minutes to hours to feel like their usual self.

Can seizures happen suddenly?

A seizure is abnormal electrical activity in the brain that happens quickly. It may go nearly unnoticed. Or, in serious cases, it may cause unconsciousness and convulsions, when your body shakes uncontrollably. Seizures usually come on suddenly.


What does a seizure feel like in your head?

If the abnormal electrical activity involves a large area of the brain, the person may feel confused or dazed, or experience minor shaking, muscle stiffening, or fumbling or chewing motions. Focal seizures that cause altered awareness are called focal unaware seizures or complex partial seizures.

Can anything stop seizures?

Prescribing medicine is usually the first thing doctors do to stop seizures. It's important to take it on time and at the dose prescribed so the doctor can tell if it's helping. Sometimes you may need to try a few different medicines before finding the right one, or the right combination, that stops the seizures.

At what age does epilepsy usually start?

Epilepsy can start at any age, but usually starts either in childhood or in people over 60. It's often lifelong, but can sometimes get slowly better over time.


Does seizure ever go away?

While many forms of epilepsy require lifelong treatment to control the seizures, for some people the seizures eventually go away. The odds of becoming seizure-free are not as good for adults or for children with severe epilepsy syndromes, but it is possible that seizures may decrease or even stop over time.

Does your brain reset after a seizure?

The postictal state is right after a seizure when the brain is in recovery mode. The more severe the seizure, the more the brain is in a "reboot" mode. Although recovery is one way of putting it, it is more like familiarity has been lost in brain activity, and without a familiar state, the brain is very out of balance.