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A Canadian study has found that women have a circadian rhythm, which runs between 1.7 and 2.3 hours ahead of their male partners.
This means they are likely to feel more tired earlier in the evening than men, according to the study in the journal Proceedings of the National Academy of Sciences.
Such differences are mainly due to the influence of our sex hormones, says Dr Adam Taylor, a senior lecturer in anatomy at Lancaster University Medical School
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If you’re worried about falling ill this winter, it might be wise to have a desk clean.
has found that your computer or laptop keyboard is 20,000 times dirtier than a toilet seat.
Meanwhile your smartphone has more than 9,000 times more germs than a toilet seat. Vile.
The grim findings were discovered by who swabbed typical items used in an office to see how much bacteria they harboured.
Their team swabbed five items within each category to find the average colony-forming units (CFU) per square inch on each surface. Swabs were then sent off to be tested in a laboratory.
The swabs revealed that, overall, an item, with 243 times more bacteria then a germ-filled pet toy.
Keyboards came in second place, followed by mobile phones, a computer mouse and, finally, a trackpad - which had 162 times more bacteria than money.
The most was gram-positive cocci, which is found in pneumonia.
It’s safe to say antibacterial wipes have never looked more inviting.