One particularly interesting study observed increased brain activity in the part of your brain where your working memory is [22]. (healthyeatingharbor.com)
During this dream stage, the eyes move rapidly and there is increased brain activity as well as higher body temperature, quicker pulse and faster breathing. (sciencedaily.com)
Highly fit older people had better memory performance and increased brain activity patterns in comparison to their less fit peers. (ahealthblog.com)