A study led by the University of Barcelona has identified the process in the brain which strengthens or weakens memories of our daily events while we sleep. According to the study published in the scientific journal The Journal of Neuroscience , the brain reactivates networks of interrelated memories during sleep, instead of doing so with isolated memories. Also, researchers show that in this memory reactivation process, the brain also promotes the forgetting of less important and less established information in the network of memories.
