Can nose-picking really contribute to dementia and Alzheimer's disease? An expert explains

A recent review paper published in the journal Biomolecules explored the potential relationship between nose-picking and the development of dementia and Alzheimer's.

Neuroinflammation, or swelling of nervous tissue, may play at least a partial role in Alzheimer’s disease.

The authors of this specific paper suggest, but do not prove, that microbes or viruses may enter the brain through the nose.