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Why do seizures happen?

Seizures are a result of intermittent and abnormal bursts of electrical activity within the brain.

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Messages are passed through the brain through a ‘chain-like’ system: Nerve cells (neurones) fire tiny electrical charges to activate the neurones next to them. These cells fire to activate the ones next to them, and so on.

There are two types of cerebral neurotransmitters: one encourages the brain cell to fire (excitatory) and one prevents firing (inhibitory).

If there is either too much excitatory neurotransmitter (glutamate) or too little inhibitory neurotransmitter (GABA) in evidence, a seizure occurs.

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