Marni Rose McFall is a Newsweek reporter based in London, U.K. Her focus is on U.S. politics, social affairs and popular culture. She has covered fashion, culture, art and music extensively.

Apatеu, apateu! Rosé is taking over the charts with her new Bruno Mars hit 'APT.' but what does APT. actually mean? Ever since Rosé announced that she would be releasing her debut solo album ...

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The red cell distribution width (RDW) blood test measures how equal your red blood cells are in size. One of several tests included in a complete blood count (CBC), RDW is measured as a percentage.