Giving up caffein is the single most important thing most people can do to improve sleep quality. Wikipedia says "Caffeine is the world's most widely consumed p

Giving up caffein is the single most important thing most people can do to improve sleep quality. Wikipedia says "Caffeine is the world's most widely consumed psychoactive drug", so it's obvious why coffee is so addictive for many. It is very hard to stay away from coffee, when it is literally everywhere. Somebody is always brewing coffee at the office, every street corner has a café, every meeting starts with someone serving coffee. It doesn't makes things better living in Norway, which has the worlds second highest coffee consumption per capita.