New research shows that surrogate decision-makers who had not discussed life support measures with their critically ill family members have more trouble making the final judgement.

A new study suggests there isn't enough evidence to recommend the widespread use of cholesterol-lowering stain drugs for patients who don't have a history of cardiovascular disease.

With E. coli bacterial contamination a potential problem in both drinking and recreational water supplies, a new laser technique to provide faster and better analyses of rivers, beaches and lakes is a welcome new tool.

Scientists have finally developed a complete model of the HIV virus's outer shell, a process that took years because of the virus's "tricky" proteins.

HIV-related health complications pose a greater risk for women, minorities and Southerners, according to a study by the University of Colorado in Denver.

Having healthy gums may prevent serious and potentially fatal respiratory diseases such as chronic obstructive pulmonary disease (COPD) and pneumonia, according to the American Academy of Periodontology.

Individuals who eat more fruit and vegetables have a lower risk of mortality from ischemic heart disease, the most prevalent form of heart disease, according to new research.

A team of international researchers has found that video game addiction is a growing problem that can lead to numerous psychological issues.