A T cell count is a blood test that measures the number of T cells, a type of white blood cell crucial for fighting off diseases, especially viral infections. This test helps identify issues with the ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

The 2026 Winter Olympics are in the books. The two-week competition was capped by a thrilling gold medal game in Men's Hockey where Team USA outlasted Canada to win the event for the first time in 46 ...

If there's one thing Team USA has brought to the 2026 Winter Olympics, it's star power. From Mikaela Shiffrin, Chloe Kim and Lindsey Vonn, to Alysa Liu, Ilia Malinin and the Tkachuk brothers, there's ...

Have you ever worked with a group of people trying to solve a problem? There are different opinions, different considerations, and each person’s perspective provides a different angle on the problem.

Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. The application of statistical methods extracts information from ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Yarilet Perez is an experienced multimedia journalist and fact-checker with a Master of Science in Journalism. She has worked in multiple cities covering breaking news, politics, education, and more.