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Many American teenagers try to put in a full day of school, homework, after-school activities, sports and college prep on too little sleep. As evidence grows that chronic sleep deprivation puts teens at risk for physical and mental health problems, there is increasing pressure on school districts around the country to consider a later start time.

Every year, viruses like influenza kill hundreds of thousands worldwide — yet countries don't respond with lockdowns or airport screenings. Here's why they're doing so over the coronavirus outbreak.

Microplastics have been found in human stool samples from countries in many parts of the world, according to a small pilot study being presented this week at the 26th annual United European Gastroenterology conference in Vienna.

Our region’s booming growth is also part of the problem. More overuse of fertilizers, pet waste, leaky septic tanks, people feeding ducks and geese — all give cyanobacteria the nutrients it needs to grow.

Norovirus is that awful ailment that can make you barf and suffer from diarrhea. A new study tries to figure out the best way to stop it.

The Washington House Environment Committee hosted public hearings Tuesday on two bills that would restrict a class of chemicals found in everything from firefighting retardant to food wrappers.

The Institute for Protein Design at the University of Washington School of Medicine has been awarded $11.3 million to work on a universal flu vaccine.

The childhood obesity epidemic rages on in the United States, with a big surge among the youngest kids, according to the latest government data.

The U.S. declared the novel coronavirus a public health emergency Friday, banning non-U.S. citizens who traveled to China from entering the country and imposing new screenings and quarantine on U.S. citizens flying back from China.

New York officials say tests found high levels of vitamin E in cannabis vaping products used by people who developed lung damage. But it's only one of many possible causes still under investigation.