Could Our Noses Help Cause, Spot, And Even Manage Dementia?
Not only that, but some studies have suggested that bacteria which enter our nose, i.e., through nose-picking, could increase our likelihood of dementia (though this has been debated). Still, another paper involving mice found dementia-like changes in the rodents’ brains after nasal exposure to the respiratory tract pathogen chlamydia pneumoniae.
Article source: https://www.huffingtonpost.co.uk/entry/nose-dementia-relationship-explained_uk_6ae35c9ee4b0bcffa26d051e