Data from some 900 older adults has linked stressful life experiences among middle-aged women, but not men, to greater memory decline in later life.
A study involving more than 2,500 older adults (65+) found that the rate of worsening vision was associated with the rate of cognitive decline. More importantly, vision has a stronger influence on cognition than the reverse.
Brain scans from over 4,000 people, across the age range (9 months to 94 years) and including 1,385 Alzheimer's patients, has revealed an early divergence between those who go on to develop Alzheimer’s and those who age normally.
A fruitfly study suggests that losing neurons is not necessarily a bad thing.
Data from the Harvard Aging Brain Study found that higher amyloid beta levels were associated with increasing anxiety symptoms in cognitively normal older adults. The results suggest that worsening anxious-depressive symptoms may be an early predictor of elevated amyloid beta levels.
A study has shown new technology can quickly and non-invasively detect reduced blood capillaries in the back of the eye that are an early indication of Alzheimer's.
A very long-running study involving 290 people at risk of Alzheimer's has found that, in those 81 people who developed
A long-term study of nearly 3,000 older adults (57-85) has found that those who couldn’t identify at least four out of five common odors were more than twice as likely as those with a normal sense of smell to develop dementia within five years.
Alzheimer's disease is associated with abnormalities in the vast network of blood vessels in the brain, but it hasn’t been known how this affects cognition. A study has now shown that a blood-clotting protein called fibrinogen plays a part.
It’s been known that decreased blood flow in the brain occurs in people with Alzheimer's, and recent studies suggest that brain blood flow deficits are one of the earliest detectable symptoms of dementia.
Increases in brain activity are matched by increases in blood flow. Neurons require a huge amount of energy, but can’t store it themselves, so must rely on blood to deliver the nutrients they need.
Two new studies help explain how blood flow is controlled.
New findings identify a mechanism that accelerates aging in the brain and gives rise to Alzheimer's disease.