A medical expert has highlighted a possible health concern connected to a common habit many people develop during childhood. According to Sermed Mezher, frequent nose picking could potentially affect brain health and may be linked to a higher risk of Alzheimer’s disease, although research in this area is still developing.
The discussion gained attention after Dr Mezher shared insights on social media explaining how germs could travel through the nasal cavity and possibly reach the brain. One of the reasons scientists began exploring this theory is because a reduced sense of smell is often among the earliest warning signs of Alzheimer’s disease.
Medical experts note that the inside of the nose contains delicate tissues and nerve pathways connected to the brain through the olfactory system. When a person frequently picks their nose it can damage the protective lining of the nasal cavity and create tiny tears in the mucosal tissue.
According to the doctor these small injuries may allow bacteria and viruses from the hands to enter the nose more easily. Once pathogens reach the olfactory nerves they may potentially travel to the brain through the olfactory bulb which acts as a direct pathway between the nose and the brain.
Researchers believe this process could lead to chronic inflammation in brain tissue. Over time such inflammation might trigger the production of amyloid beta proteins which are known to form plaques in the brains of people diagnosed with Alzheimer’s disease.
However scientists emphasise that this theory is still being studied. Some early findings have been observed in animal studies but researchers have not yet confirmed a clear cause and effect relationship in humans.
Because of this experts say more clinical research is needed before drawing firm conclusions about whether nose picking directly increases Alzheimer’s risk.
Tips to Reduce Potential Risk
While occasionally cleaning the nose is normal the doctor advises avoiding direct contact with bare fingers. Instead using a tissue or a cotton bud can reduce the chances of introducing germs into the nasal passages.
Maintaining good hand hygiene is also important since fingers often carry bacteria from various surfaces throughout the day.
Understanding Alzheimer’s Disease
Alzheimer’s disease is one of the most common forms of dementia and affects memory thinking and behaviour. According to information from Mayo Clinic, the condition develops gradually when abnormal protein deposits form in the brain leading to the destruction of brain cells and shrinkage of brain tissue.
The most noticeable early symptom of the disease is memory loss although other cognitive problems can develop as the condition progresses.
Medical professionals advise that anyone concerned about neurological symptoms should consult a qualified healthcare provider for proper diagnosis and guidance.