Frequent Nose-Picking Linked to Alzheimer’s Disease in New Study

A recent study conducted by researchers at Western Sydney University has revealed a concerning link between frequent nose-picking and the development of Alzheimer's disease, a progressive form of dementia. The study, which reviewed numerous research papers, found that the act of picking one’s nose introduces harmful germs into the nasal cavity, triggering the brain to produce beta-amyloid proteins as a defense mechanism.

Beta-amyloid proteins are believed to be a leading cause of the neuroinflammation associated with Alzheimer’s disease. The researchers hypothesize that pathogens entering the brain through the olfactory system, as a result of nose-picking, may contribute to this inflammation.

Alzheimer’s disease affects millions of individuals worldwide, with the majority of cases occurring in individuals aged 65 and above. In the United States alone, according to the Mayo Clinic, around 6.5 million people aged 65 and above are affected by the disease. It is the most prevalent form of dementia, accounting for up to 70% of all dementia cases globally.

The exact causes of Alzheimer’s disease remain uncertain, but it is believed to result from a combination of age-related brain changes, genetic predispositions, environmental factors, and lifestyle choices, as suggested by the USA’s National Institute on Aging. While various lifestyle factors may contribute to the disease, the researchers caution against nose-picking due to the potential introduction of harmful germs to the brain.

Although nose-picking may provide temporary relief, removing dried mucus should not replace proper nasal hygiene, which involves regular cleaning and maintenance of the nasal passages through gentle methods like saline nasal rinses or blowing the nose. The importance of hand hygiene has been emphasized during the COVID-19 pandemic, and the research suggests that incorporating routine hygienic procedures, including regular handwashing, can help protect brain health and reduce the risk of Alzheimer’s disease.