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I am not surprised that drinking coffee is associated with lower mortality.
However, the cause may not just be the pharmacology of coffee. The Danish word for a spontaneous coffee break, typically taken with others, is 'kaffepause'. Where possible, little snacks or sweet treats accompany a kaffepause, and with work colleagues this is a feature of building trust and understanding in the workplace. Typically, home is close to work and flexible working traditions mean Danes may pop out during the day for a kaffepause with family members. The benefits of frequent breaks, for Danes' social capital and mental wellbeing, may hold lessons for all BMJ readers.
 Minerva. Coffee drinking and mortality. BMJ 2018;362:k3185
 Wiking M. The Happy Danes. Exploring the reasons behind the high levels of happiness in Denmark (English translation). Frederiksberg: The Happiness Research Institute, 2014.