European clocks will be dialled forward by one hour tonight. This clock-switching ritual is not just pointless, but also deadly: heart attacks rise by about 24% in the days after the spring forward. Let tonight be the last time that it ever happens (and not because we end up in a nuclear holocaust).

In any case, it is best to focus on natural rhythms — like heartbeats, sleepiness, the sun’s position, and outdoor brightness — instead of paying heed to the clock time. Alarm clocks destroy sleep quality by agitating the body into overriding its ideals; I’ve actually had a nightmare about having to wake up to one.