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First thing’s first, what are circadian rhythms? Circadian rhythms are internal 24-hour rhythms that cause physiological and behavioural changes with the aim of aligning us with our environment and to help us survive. This internal “clock” prepares our bodies and minds for what is coming. Our sleep-wake cycle is one aspect of this. If you wake up every day for work at 6.30am, you may be unamused when you also wake up at 6.30am on a Saturday – but that is your internal clock at work.
It is widely known that there is a two-way relationship between our circadian rhythms and both our physical and mental health. However, the mechanisms underlying these relationships are still unclear. There are many different…