cognitive decline tagged posts

Atrial fibrillation, the most common cardiac rhythm abnormality, has been linked to one-third of ischemic strokes, the most common type of stroke. But atrial fibrillation is underdiagnosed, partly because many patients are asymptomatic.

Artificial intelligence-enabled electrocardiography (ECG) was recently shown to identify the presence of brief episodes of atrial fibrillation, and the ability of an AI-enabled ECG algorithm to predict atrial fibrillation up to 10 years before clinical diagnosis has been confirmed in a population-based study conducted by Mayo Clinic researchers.

A new population-based study from Mayo Clinic now offers evidence that the algorithm can help identify patients at greater risk of cognitive decline...

Too little and too much sleep linked to cognitive decline. Like so many other good things in life, sleep is best in moderation. A multiyear study of older adults found that both short and long sleepers experienced greater cognitive decline than people who slept a moderate amount, even when the effects of early Alzheimer’s disease were taken into account. The study was led by researchers at Washington University School of Medicine in St. Louis.

Poor sleep and Alzheimer’s disease are both a...

NUS researchers found that regular consumption of tea brewed from tea leaves reduces elderly persons’ risk of cognitive decline

Tea drinking reduces the risk of cognitive impairment in older persons by 50% and as much as 86% for those who are genetically at risk of Alzheimer’s. A cup of tea a day can keep dementia away, and this is especially so for those who are genetically predisposed to the debilitating disease, according to a recent study led by Assistant Professor Feng Lei from the Department of Psychological Medicine at National University of Singapore’s (NUS) Yong Loo Lin School of Medicine.

The longitudinal study involving 957 Chinese seniors aged 55 years or older has found that regular consumption of tea lowers the risk of cognitive decline in the elderly by 50 per cent, while ...

Marijuana appears to hamper blood flow to the brain, which theoretically could affect your memory and ability to reason, a new study suggests.

Marijuana appears to hamper blood flow to the brain, which theoretically could affect your memory and ability to reason, a new study suggests. Brain scans of nearly 1,000 past and present marijuana users revealed abnormally low blood flow throughout their brains, compared with a smaller control group of 92 people who’d never used pot. “The differences were astonishing,” said Dr. Daniel Amen, a psychiatrist and founder of the U.S.-based Amen Clinics. “Virtually every area of the brain we measured was lower in blood flow and activity in the marijuana smokers than in the healthy group.”

Blood flow was lowest in the hippocampus of marijuana users, which...