Rozalynn S. Frazier, C.P.T. Rozalynn is an award-winning, multimedia journalist, NASM-certified personal trainer, and 10-time marathon runner, living in New York City. She's been writing health and wellness content for Real Simple since 2020, covering everything from nutrition to mental health to stretching. About Real Simple Real Simple, a Dotdash Meredith Brand, is an award-winning, trusted online resource for smart, authentic solutions to simplify your life. We reach 11 million readers a month. Our content is written by experienced journalists and fact-checked for accuracy. Learn more about us and our editorial guidelines.