Dementia: Going to sleep at certain time could increase your risk by 70% – study

The study, published in the Sleep journal, found that insomnia was also linked to an increased risk of dementia.

The research looked at data from more than 26,000 participants between the ages of 45 and 85. 

The subjects had to complete self-reported evaluations of their sleep and memory as well as complete neurological testing during three years.

Nathan Cross, a postdoctoral fellow on the study, said: “We found that insomnia specifically was related to worse memory performance compared to those who have some insomnia symptoms alone or no sleep problems at all.”