Alzheimer's Archive

There's no clear-cut answer about whether taking antihistamines for allergies increases dementia risk. Antihistamines have anticholinergic effects, which might increase the risk for dementia by blocking a particular brain neurotransmitter or increasing brain inflammation. But studies on whether there's any link between antihistamines and dementia have produced conflicting findings. Doctors advise taking the lowest antihistamine dose possible or using another medication for symptom relief.

A 2024 study suggested that older adults who undergo cataract surgery to improve vision may have a lower risk of developing dementia.

According to a 2024 study, people with high amounts of visceral fat-the deep hidden fat surrounding abdominal organs-also have higher levels of abnormal proteins in the brain that are hallmarks of Alzheimer's disease.

Having an extremely low LDL level from aggressive cholesterol-lowering therapy was not associated with cognitive impairment, according to a 2024 study.

A 2024 study of more than 10,000 dementia-free people found that fitting the recommended amount of weekly exercise into one or two sessions was associated with a similar reduction in dementia risk as exercising throughout the work week.

Eating a traditional Mediterranean diet or green Mediterranean diet, which emphasizes more foods high in plant foods, including green tea and duckweed, may help reduce brain shrinkage, a 2024 study suggests.