Sleep is considered the steward of the brain, responsible for repairing and restoring the brain. The study included 147 adults aged from 20 to 84 years old. The researchers examined the association between insomnia (difficulty falling asleep and keeping awake at night) and brain capacity. All participants performed two nuclear magnetic resonance (MRI) brain scans with an average interval of 3.5 years before conducting a questionnaire on sleep habits. 35% of the participants combined with poor sleep quality criteria, assessed the average score of sleep scores of 8.5, out of 21 points. Assess the need to observe how long sleep, how long to sleep, the use of sleeping pills, and other factors. During the study, insomnia was associated with a rapid decline in brain volume [...]