Should you use an air dryer or paper towels to dry your hands after washing them in a public bathroom? Dr. Sanjay Gupta shares his take. Plus, plasma donation is a growing trend across the country. Dr. Gupta digs into the reasons why and if there are any long-term health consequences. This episode was produced by Leying Tang. Medical Writer: Andrea KaneShowrunner: Dan BloomTechnical Director: Dan Dzula Learn more about your ad choices. Visit podcastchoices.com/adchoices