Articles on cognitive abilities

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Brain-training games sell themselves as a way to maintain cognitive function, but the evidence isn’t there yet. Eva-Katalin/E+ via Getty Images

Brain‑training games remain unproven, but research shows what sorts of activities do benefit cognitive functioning

Brain-training games may have cognitive benefits, but other challenging activities are proven to help our brains function at their best.
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. (Shutterstock)

Better sleep is a protective factor against dementia

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.

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