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SCIENTISTS FINALLY WORK OUT WHAT CAUSES UNUSUAL ITCHING
BBC Science Focus
|New Year 2024
And it's worse than you think
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Right now, somewhere on your body, you've probably got an itch caused by nothing in particular... or so it seems. Because scientists at Harvard Medical School in the US have discovered the cause: bacteria living in your skin.
A new paper published in the journal Cell reveals that Staphylococcus aureus (seen below) releases a chemical that activates a protein in our nerves. This sends a signal from our skin to our brain, which perceives it as an itch.
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FLERE HISTORIER FRA BBC Science Focus
BBC Science Focus
HOW DO I KNOW WHEN TO LET GO OF PAST GOALS OR DREAMS?
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BBC Science Focus
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BBC Science Focus
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BBC Science Focus
Mysterious 'surge' under Earth's crust could reshape world map, study claims
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BBC Science Focus
Our meat could soon be gene-edited. Should we be worried?
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BBC Science Focus
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BBC Science Focus
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A strange visual trick can speed up learning and boost performance
3 mins
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BBC Science Focus
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From fasting to low-protein diets, the evolving science of dietary restriction might just offer the key to slowing ageing
6 mins
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BBC Science Focus
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Forgetfulness doesn't have to be an inevitable part of life. Like going to the gym to stay fit, there are habits you can adopt to keep your memory sharp
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