Worried about catching the flu? AT&T is now warning that your cellphone could be one of the biggest threats. The reason? It touches your face all the time. According to CBS:

Dr. Geeta Nayyar is urging people to clean and disinfect their phones regularly, use hands-free headsets and avoid taking out their phones in restrooms.

She says cellphones make a convenient delivery device for viruses because of how often people shake hands, turn doorknobs and use railings before touching their phone.

Makes sense if you think about it. We are always putting our phones on tables and other places where people have come into contact. Then we touch and use our phones a lot during the day.

Oh and yes, putting your phone down anywhere in a public restroom is a bad idea.