Sleep well, think well

Sleep-disordered breathing raises the risk of cognitive impairment in older women, according to a US-based study of 298 women with a mean age of 82 years. 

Compared with the 193 women who did not have sleep-disordered breathing, the 105 women with the condition were more likely to have mild cognitive impairment or dementia. 

According to a review published in JAMA, the relevance of this is that sleep-disordered breathing is common, and effective treatment is readily available.

JAMA, 2011; 306(6):613-619