Scientists are trying to work out if a bacteria linked to dementia gets into human brains through the nose, like it does in mice.
Study into nose-picking link to dementia
The potential link between picking your nose or plucking nose hairs and dementia will be part of a new study.
Griffith University researchers have proven that the Chlamydia pneumoniae bacteria that’s linked to late-onset dementia can enter the central nervous systems of mice through the olfactory nerves of their noses.
Professor James St John says mouse brain cells respond to the bacteria by depositing amyloid beta protein, which clumps into plaques disrupting neurons and cells in Alzheimer’s patients.
“We’re the first to show that Chlamydia pneumoniae can go directly up the nose and into the brain where it can set off pathologies that look like Alzheimer’s disease,” he said in a statement on Friday.