Researchers have shown that clearance of the substance amyloid-beta that forms plaques is impaired in individuals with Alzheimer’s. A group of 12 individuals with early Alzheimer’s were compared to 12 cognitively normal individuals
This has most likely been posted here before, but it's incredibly useful.
When children play we often just think they're having fun, but research has shown that the benefits of play extend far beyond that in early childhood. Such a key resource in understanding the effects and benefits of play on early childhood development.
Kindergarten to Grade 2 PE Games - Complete Sport Skill and Games Pack 2017