Snow is falling, the nights are getting longer, and stores are playing holiday music; these are all signs that winter has begun. For many, the fresh snow, sweets, and holiday cheer can bring a lot of joy and happiness during this time, but for some, the winter season can cause their mood to drop. How could a specific season put someone in a poor mood? After many years of research, scientists have found that some people suffer from Seasonal Affective Disorder (SAD). According to the Mayo Foundation for Medical Education and Research (MFMER), this disorder is a type of depression that corresp...