Improving deep sleep may prevent dementia.

“As little as 1 per cent reduction in deep sleep per year for people over 60 years of age translates into a 27 per cent increased risk of dementia…” These sorts of studies tend to struggle with limited data and small sample sizes. In this case, the researchers used the Framingham Heart Study, which is “a unique community-based cohort with repeated overnight polysomnographic (PSG) sleep studies and uninterrupted surveillance for incident dementia.” ~ learn more