Jen Gunter, an OB/GYN and pain medicine physician, talks with Recode's Kara Swisher about how celebrity wellness brands have been overtaken by "medical conspiracy theories" and dangerous recommendations — for example, that bras cause breast cancer. After Gunter disputed that claim, made by a writer for Gwyneth Paltrow's company, Goop, it accused her of "being in the pocket of big lingerie." She also talks about the larger problems with finding reliable health information online and how regular people without medical degrees can be smarter skeptics of what their doctors say.

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