Researchers have identified a new mechanism within neurons that cause memories associated with social interactions to decline with age. Additionally, they were able to reverse the memory loss in mouse models.
An uncommon variant of the PDE11A gene impacts both quality and duration of sleep. Genetic regions linked to sleep quality are also associated with serotonin production. The study also reveals those with the same hip circumference and a higher waist circumference sleep less, although the effect is small.
