When your body cranks up the heat, it’s a sign that something’s wrong—and a fever is designed to help fight off the infection. But turning up the temperature can have a down side: in about one in 25 infants or small children, high fever can trigger fever-induced (febrile) seizures.

C-reactive protein, a marker of inflammation that is often used to detect cardiovascular disease, may also indicate cognitive impairment in children with obstructive sleep apnea (OSA), according to a new study of children ages 5 to 7.