Gases in Earth's atmosphere absorb about 90 percent of this heat and radiate it back to the surface, which is warmed to a life-supporting average of 59 F (15 C). This very helpful process is called the greenhouse effect.
Anything that interrupts the normal connections between nerve cells in the brain can cause a seizure; this includes a high fever, low blood sugar, alcohol or drug withdrawal, or a brain concussion. Under these circumstances, anyone can have one or more seizures.
It's like a short circuit in the brain, says Adam Hartman, M.D., assistant professor of Neurology and Pediatrics at the Johns Hopkins Children's Center in Baltimore. Epilepsy is the most common cause of seizures, but many things, including birth trauma, brain disorders, and chemical imbalances, can trigger them. Often, doctors can't determine the reason for a seizure.