Guest-hosted by Sam Sanders: Social media, constantly seeing ourselves on Zoom, and other modern technologies are inspiring people to change their faces and bodies at a rapid pace. Meanwhile, we have more access than ever before to medical procedures to modify our appearances. That combination is resulting in a plastic-surgery frenzy. To understand the science behind how our brains process beauty, guest host Sam Sanders talks to Neelam Vashi, an associate professor of dermatology at Boston University’s medical school who has studied the connection between social media and cosmetic surgery. Then, Elise Hu, the author of Flawless: Lessons in Looks and Culture From the K-Beauty Capital, offers tips on how to navigate a world of ever-fleeting beauty trends.