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In a new study (BMJ 2022;376:e068005) multimorbidity, particularly when onset is in midlife rather than late life, has a robust association with subsequent dementia.

Dairy intake may increase risk of Parkinson's disease in men, according a group of investigators. Men of European ancestry with a genetic marker predicting dairy consumption had significantly greater risk of Parkinson's disease than individuals without the marker, suggesting a causal relationship between dairy intake and Parkinson's disease, author...

Young adults performed worse on memory and attention tests several months after an acute case of mild COVID-19, according to a small study that may support the "brain fog" reported by many.

Brains of COVID-19 patients had some of the same pathological changes seen in Alzheimer's disease, which may explain the memory problems people with long COVID experience, a small study suggested.

Dementia incidence tripled in lonely older adults who otherwise would be expected to have relatively low risk based on age and genes, researchers found in a recent study.

In a new study published in Neurology the objective was to examine the association between occupational exposure to formaldehyde and cognitive impairment in middle-aged and young-old adults (≥45 years).

Several studies have assessed risk factors associated with the severity of COVID-19 outcomes in people with multiple sclerosis (PwMS). The potential role of disease-modifying therapies (DMTs) and demographic and clinical factors on the risk of acquiring SARS-CoV-2 infection has not been evaluated so far. The objective of a new study (DOI:...

Over the past couple decades, researchers have identified numerous genes involved in various immune system functions that may also contribute to Alzheimer's.

Cancer and Alzheimer's disease are common diseases in aging populations. Prior research has reported a lower incidence of Alzheimer's disease-type (amnestic) dementia among individuals with a diagnosis of cancer. Both cancer and amnestic dementia are prevalent and potentially lethal clinical syndromes. The current study (Brain, awac035,...

In high-pollution areas, physical activity may have a paradoxical effect on brain health by increasing particulate deposition in the lungs. We examined whether physical activity modifies associations of air pollution (AP) with brain volumes in an epidemiologic framework.