Some fuel stoking the Blue Monday fire could also be the phenomenon that's based on research from Japan . Arnall has also claimed to campaign against his own idea of Blue Monday as part of the "activist group" Stop Blue Monday. What is real is the winter blues, more clinically known as seasonal affective disorder, or SAD. Get CNN Health's weekly newsletter Sign up here to get The Results Are In with Dr. Sanjay Gupta every Tuesday from the CNN Health team. The concept of Blue Monday was a relatable idea at best and a travel marketing scheme that probably didn't work.

Source: CNN January 20, 2020 07:41 UTC