March 31, 2014
Science Daily/American Academy of Sleep Medicine
A link between poor sleep quality and the development of cognitive decline over three to four years was found in a new study of older men.
Results show that higher levels of fragmented sleep and lower sleep efficiency were associated with a 40 to 50 percent increase in the odds of clinically significant decline in executive function, which was similar in magnitude to the effect of a five-year increase in age. In contrast, sleep duration was not related to subsequent cognitive decline.
"This study provides an important reminder that healthy sleep involves both the quantity and quality of sleep," said American Academy of Sleep Medicine President Dr. M. Safwan Badr. "As one of the pillars of a healthy lifestyle, sleep is essential for optimal cognitive functioning."
Science Daily/SOURCE :http://www.sciencedaily.com/releases/2014/03/140331170557.htm