Weekly physical activity may help prevent mild cognitive impairment conversion to dementia

Exercising more than once per week is associated with a lower risk of developing Alzheimer’s disease in patients with mild cognitive impairment, research published in the open access journal Alzheimer’s Research and Therapy suggests. Mild cognitive impairment is a condition that causes people to have more problems with memory and thinking than is normal for someone their age. People with mild cognitive impairment have a ten-fold higher risk of developing Alzheimer’s disease than the general population. Continue reading “Weekly physical activity may help prevent mild cognitive impairment conversion to dementia”

Sleep loss hijacks brain’s activity during learning

Sleep is crucial for consolidating our memories, and sleep deprivation has long been known to interfere with learning and memory. Now a new study shows that getting only half a night’s sleep — as many medical workers and military personnel often do — hijacks the brain’s ability to unlearn fear-related memories. That might put people at greater risk of conditions such as anxiety or posttraumatic stress disorder. Continue reading “Sleep loss hijacks brain’s activity during learning”

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