Can't Switch Off

Is artificial light disturbing our circadian rhythms and ruining our sleep? As Andrew Beale explains, the answer is not quite that simple

The Biologist 64(6) p22-25

Do you get enough sleep? Recent documentaries on television – Sleepless Britain (BBC One, 6th March) and The Truth About Sleep (BBC One, 11th May) – painted a picture of a country suffering the effects of chronic sleep deprivation linked to our modern lifestyles.

These effects go beyond feeling drowsy at work: long-term reduction in sleep has been linked to the increased incidence of non-communicable diseases such as obesity, heart disease and diabetes[1].

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