In early January, more than 700 Stanford University athletes took rapid Covid tests upon returning to the campus. Those who tested negative — and some who tested positive — were also given PCR tests.

A stress test measures how well your heart works when put under stress. It is ordered to assess exercise tolerance, see if your heart can respond to demands, or test if heart medications are working.

The third holiday season since the pandemic started is underway, and more than 400 people are still dying of Covid every day, on average, according to NBC News' tally. Average daily cases have risen ...

Urine tests can detect alcohol metabolites in your system long after you’ve had your last drink. When your body processes alcohol, it produces alcohol metabolites. These metabolites stick around in ...

Saturday is a big day for college-bound students across North Texas. It is the national testing day for the SAT. It’s the standardized test that used to be the norm for college admissions, was put ...

Hassan Vally does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

The return of standardized testing requirements drove down the size of Harvard’s application pool this year — but it’s not clear how the change will affect the profile of future freshman classes. The ...

It can take months or years for doctors to determine whether people with early signs of memory loss have Alzheimer's disease. But experts say a new generation of blood tests may replace the expensive ...

Traveling through security at a southwest airport may soon be as easy as checking out your own groceries or ordering your own food from a restaurant. A self-service screening option is coming to Las ...