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.
Seizures, or convulsions, occur when abnormal signals from the brain change the way the body functions. Seizures are different from person to person. Some people have only slight shaking of a hand and do not lose consciousness.or more information, see the topic Epilepsy. A seizure can be a symptom of another health problem, such as: 1  A rapidly increasing fever (fever seizure). 2  An extremely low blood sugar level in a person who has diabetes. 3  Damage to the brain from a stroke, brain surgery, or a head injury.