Final answer:
Fever is the most common cause of seizures in infants and children, due to the high glucose demand during feverish illnesses and the formation of antibodies.
Step-by-step explanation:
The most common cause of seizures in infants and children is fever. Seizures can be caused by various factors such as infections, brain injuries, or congenital anomalies, but febrile seizures, which are seizures that occur with a fever, are generally the most frequent cause in the pediatric population. This is especially notable when considering that young children often experience a high demand for glucose during febrile illnesses for the formation of antibodies, which can lead to decreased glucose availability for other bodily functions and contribute to the risk of seizures.
.