Dr Susan Massick of Ohio State University Wexner Medical Center told DailyMail.com that if you’re going to rewear your gym clothes, stick to just twice before washing due to bacteria from sweat.Dr Susan Massick of Ohio State University Wexner Medical Center told DailyMail.com that if you’re going to rewear your gym clothes, stick to just twice before washing due to bacteria from sweat.Read MoreHealth News | Mail Online