Which of the following factors can cause seizures (fits)?

Epilepsy is a neurological disorder characterized by recurrent seizures, which can present in various forms. It results from abnormal electrical activity in the brain, leading to disturbances in communication between nerve cells. Individuals with epilepsy may experience different types of seizures depending on the areas of the brain affected and the underlying cause of their condition.

While dehydration, anxiety, and high cholesterol can have their own health impacts, they do not directly cause seizures in the same way that epilepsy does. Dehydration can lead to various physiological problems, and anxiety may provoke episodes of panic or hyperventilation, but these do not typically result in the type of seizure activity associated with epilepsy. High cholesterol, primarily associated with cardiovascular disease, does not have a direct association with the initiation of seizures. Therefore, epilepsy stands out as the primary cause of seizures among the options given.