I have no idea of what the truth is, it there seem to be a fair number of studies indicating a down side to napping. Doesn't much matter to me, I'm usually busy with something or another anyway.
http://www.dailymail.co.uk/news/article ... third.html$this->bbcode_second_pass_quote('', 'I')t seems a pretty harmless occupation, but taking an afternoon nap can knock years off your life, say researchers.
British adults who sleep for an hour or more in the day increased the chances of premature death by almost a third, scientists found.
The biggest risks appear to be associated with lung diseases, such as bronchitis, emphysema and pneumonia.
Adults who nap every day are up to two-and-a-half times more likely to die from respiratory illnesses than those who don’t.
Researchers said that this could be because napping triggers inflammation in the body.
However, the findings, published in the American Journal of Epidemiology, also suggested that dozing during the day could be a signal that the person already has lung disease.
Experts at Cambridge tracked more than 16,000 British men and women over 13 years.
They studied adults who, in the late nineties, signed up to a major research project investigating the effects of diet and lifestyle on cancer.
As part of the project, volunteers gave details of their sleeping habits – including whether they took a nap in the day.
Researchers then followed them up for 13 years and recorded the number of deaths – just over 3,000 – and what caused them.