Research done by workers at Harvard Medical School suggests that passive exposure to cigarette smoke can impair breathing in children ages five through nine. Lung flow rates (breathing ability) decreased for children with smoking parents, and significantly if the children also smoke. (MA)

This second of two articles on photobiology focuses on clinical applications of light. See SE 511 547 for the first article. (DT)

Suggests that doctors may one day be able to identify healthy people who will develop Alzheimer's disease. Discusses recent studies in which characteristics of a person's writing early in life appear to predict the disease, and brain scans can highlight changes that may precede dementia. (CCM)

Reports smoking cigarettes containing nicotine associated with significantly poorer delayed recall. (SL)