We have known for many years that some of us are larks and some of us are owls.  Well, this simple categorisation has been confirmed by experts (2007 study published in Personality and Individual Differences) who suggest there are actually four of these states – called chronotypes.

There are evidently four chronotypes: Lions, dolphins, wolves and bears. 

Lions wake up early with lots of energy, while wolves are most energetic in the evenings. Dolphins are light sleepers who are often diagnosed with insomnia and bears need a full eight hours of sleep every night.

The significance of this s that each of us should establish a work-rest pattern and schedule which matches our own particular chronotype.  We need to work with the natural rhythms of our body, not fight against them.

Your chronotype can have an impact on your personality, sleep behaviour and general health …. And, of course, on your productivity.

You can take a quiz to establish your chronotype at https://thesleepdoctor.com/sleep-quizzes/chronotype-quiz/.