Individuals who experience both childhood adversity and traumatic events in adulthood appear more likely to develop post-traumatic stress disorder than those exposed to only one of these types of incidents, according to a new report. In addition, the risk was further increased in individuals with a certain genetic mutation.

The spread of malware, or computer viruses, is a growing problem that can lead to crashed computer systems, stolen personal information, and billions of dollars in lost productivity every year. One of the most insidious types of malware is a "rootkit," which can effectively hide the presence of other spyware or viruses from the user. But now researchers have devised a way to block rootkits and prevent them from taking over your computer systems.

With flu vaccination season in full swing, researchers caution that use of many common pain killers -- Advil, Tylenol, aspirin -- at the time of injection may blunt the effect of the shot and have a negative effect on the immune system.

Medical researchers have found that widespread poor compliance with regular cleaning of public restrooms on cruise ships may predict subsequent norovirus infection outbreaks (NoVOs). This study is the first study of environmental hygiene on cruise ships.

A detailed picture of the seeds of structures in the universe has been unveiled. These measurements put limits on proposed alternatives to the standard model of cosmology and provide further support for the standard cosmological model, confirming that dark matter and dark energy make up 95 percent of everything in existence.

Ever since the Falklands wolf was described by Darwin himself, the origin of this now-extinct canid found only on the Falkland Islands far off the east coast of Argentina has remained a mystery. Now, researchers who have compared DNA from four of the world's dozen or so known Falklands wolf museum specimens to that of living canids offer new insight into the evolutionary ancestry of these enigmatic carnivores.

Childhood diarrhea can be a tricky public health issue. Not only is it an unpleasant subject to discuss, but eradicating it, especially in poorer nations, can often mean expensive infrastructure projects and bigger battles than many strapped governments can take on. [More]

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Adults who had experienced physical abuse as children have 56 percent higher odds of osteoarthritis compared to those who have not been abused, according to a new study.