Samantha Lauriello is a social media strategist and editor. She was previously an assistant editor at Health before moving over to Travel + Leisure as a social media editor. Sonal Kumar, MD, MPH, is a ...

Carley Millhone is a writer and editor based in the Midwest who covers health, women's wellness, and travel. Her work has appeared in publications like SELF, Greatist, and PureWow. Qin Rao, MD, is a ...

Whether poop speeds through your gut like a bullet train or takes a more smell-the-roses approach could have more profound implications for your overall health than a first glance would suggest.