Fitness influencer Stephanie Buttermore, known for ovarian cancer research and YouTube content, died suddenly at 36, her fiancé Jeff Nippard announced. NEWYou can now listen to Fox News articles! Stephanie Buttermore, a fitness influencer and doctor who researched ovarian cancer throughout her career, died at the age of 36, her fiancé and fellow fitness YouTuber Jeff Nippard, announced Friday. Nippa... [2052 chars]
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