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Lower Manhattan residents developed post-traumatic stress disorder at three times the usual rate in the years following 9/11. The rate among residents matched the rate previously reported among rescue and recovery workers.

Women with delayed sleep phase syndrome are more likely to report irregular menstrual cycles and premenstrual symptoms.

New evidence blames traffic-related pollution for increasing the risk of allergy and atopic diseases among children by more than fifty percent. What's more, the closer children live to roads, the higher their risk.

Scientists reveal that there is little or no relationship between living near green spaces and participation in physical activity.

What do George Clooney and old chocolate have in common? Both are still delicious but have greyed with age -- and while this certainly hasn't damaged the image of the former ER star, it does detract from the appeal of the mocha ambrosia, despite being perfectly safe to eat.

The primary bacteria behind tuberculosis can grow on surfaces and that drug-tolerant strains flourish in these bacterial communities, according to new research in Molecular Microbiology. The findings suggest a possible reason why human tuberculosis requires months of intensive antibiotic treatment and indicate a potential cause of the relapses that can nonetheless occur.

Tennis Grand Slam season is upon us once again with the French Open already over, and Wimbledon hot on its heels later in the month. Researchers have found that tennis players are often better than the rest of us at certain time-related, perceptual skills, such as speed discrimination.

Screening for lung cancer with computed tomography may help reduce lung cancer deaths in current and former smokers, but it won't protect them from other causes of death associated with smoking, according to a new study.

After a stroke, even unaffected areas of the brain are at risk -- depolarization waves arise at the edges of the dead tissue and spread through the adjacent areas of the brain. If these waves are repeated, more cells die. This has previously been observed only in animal studies.

Delaying an adolescent's school start time by one hour has a positive effect on his or her cognitive performance.