84 reactions · 16 shares | Sad and surprising celebrity diagnoses and concerning disease outbreaks were among the reasons you turned to WebMD for information this year. Here are the most-searched topics in 2015. | WebMD | Facebook

12K views · 42 reactions | Should you try a sensory deprivation tank to help you relax? What you should know: | WebMD | Facebook

2.7K views · 16 reactions | Did you know about 50 million people in the U.S. have allergies each year? Learn more -- including 5 ways to soothe your symptoms: | WebMD | Facebook

3.3K views · 43 reactions | Most experts say that the best, safest way to reach herd immunity is through a vaccine, and a more controversial way is through natural infection. WebMD Chief Medical Officer Dr. John Whyte explains how many Americans would have to be infected with, and recover from, COVID-19 for the U.S. to reach it: | WebMD | Facebook