December is a busy time for all, with the holidays, end-of-year activity and more. However, employers can still remind their workforces about important health observances in December, as compiled by the Wellness Council of America. For instance, December 1 is World AIDS Day, as designated by the Joint United Nations Programme on HIV/AIDS. And December 7-13 is National Handwashing Week, which can be a helpful workplace hygiene reminder during cold-and-flu month.