About a third of the population report having trouble sleeping,” says Nicholas Glozier, professor of psychological medicine at the Brain and Mind Research Institute at the University of Sydney. “About 10 per cent suffer from a sleep disorder.”

Higher education, higher income, longer work hours, older age, being a carer and having two or more children in the household are all associated with shorter sleep, according to Australian research conducted by PhD student Yu Sun Bin at the University of Sydney.

The number of hours we spend at work affects how much sleep we get. A British study found, for example, that people working 55 hours a week rather than 35 to 40 are twice as likely to sleep less than six hours, nearly four times as likely to have trouble going to sleep and twice as likely not to feel refreshed the next day.

While it’s the workers’ responsibility to arrive with enough sleep under their belts to be fit for work, employers also have their part to play. With loss of sleep equating to loss of brainpower, the business benefits of a well-slept workforce are obvious.

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Are you losing sleep over work? – INTHEBLACK.