Lack of sleep, or poor quality sleep, is one of the risk factors for developing Alzheimer’s disease. Fortunately, there are ways to improve sleep.
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Sleep appears to play an essential role in a number of brain functions, such as memory. So good quality sleep could play a vital role in preventing dementia.
A group of people with something in common is called a ‘cohort’ in research.
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Cohorts, or groups of people, are followed over time in longitudinal studies – imagine the study subjects marching forward together through the years, like a group of soldiers.