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An inquiry accused Nestlé and French officials of hiding the company's practice of filtering Perrier water it labels "natural." The head of Nestlé has suggested that human activity is making pure water scarcer.

Run by teenagers, for teenagers, the Green Crew helps students get their hands dirty with projects like tree planting, trail restoration and invasive species removal.

Former President Joseph R. Biden Jr.'s office pushed back on speculation that there had been a coverup around the illness.

Nearly 100 neurology experts collaborated on the creation of a new method of evaluating patients with traumatic brain injuries.

Guidelines advise no screening after age 70, and doctors say that even men who test diligently may develop an aggressive cancer after none was found at a recent checkup.

Agency leaders said there was evidence to justify approval only for older people and those with medical conditions. Many others may not be able to get the shots.

Researchers studied data from a million people and found evidence that a height gene shared by both sexes is amplified in men.

Here's how to protect your skin and the environment this summer.

The administration is not only allowing more greenhouse gases. It is undermining the nation's ability to understand and respond to a hotter planet.

While prognoses for prostate cancer patients were once measured in months, experts say that advances in treatment and diagnosis now improve survival by years.