We have found that fine motor components, such as those involved in playing just about any sport, are especially helpful, as is any movement that gives you a feeling of mastery over your environment. Genes play a part, too. They were trying to find the cause of her epilepsy, a disorder of the central nervous system. When the doctors touched a tiny part of the girl s brain with an electric probe, she surprised them. What s more, she thought she was laughing for a reason.
Patients often remain awake during brain surgery, because the brain feels no pain.
However, no one had suspected that a tiny spot in a part of the brain called the left frontal lobe controls laughter. The discovery has lent support to the ideas of several scientists who study laughter. Now there s mounting evidence that a variety of behavioral, emotional, and nutritional factors not only stimulate immune function but also affect the strength and speed of the immune system s response. The article runs about 7 pages. Obviously, there are some matters too painful or difficult to laugh at.