We’ve previously seen that the aggregated overall positiveness of Swedes is cyclical on a weekly basis. Swedes love their days off. We’re now happy to asses what we’ve all suspected for a long time: during Christmas and New Year we all excel in positive thinking!
Additionally, the image below reveals that, for some reason, Swedes appear to be very concerned with headaches on the day after the New Year festivities.
Positiveness correlates with holidays (red circles, Christmas and New Year), and headache correlates with New Year's Day.
Category: case studies