Here are some helpful and interesting articles that you might like:

 

https://www.chess.com/article/view/compilation-of-chess-and-education-research-studies

https://www.sciencedirect.com/science/article/pii/S1747938X16300112

https://www.ft.com/content/a7686122-524c-11e5-b029-b9d50a74fd14

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4126200/

http://bigthink.com/paul-ratner/want-to-transform-your-brain-learn-chess

http://www.healthfitnessrevolution.com/top-10-health-benefits-chess/

https://en.wikipedia.org/wiki/Chess_as_mental_training

http://www.onlinepsychologydegree.net/2012/09/24/7-surprising-health-benefits-of-playing-chess/

http://www.onlinecollegecourses.com/2012/03/25/10-big-brain-benefits-of-playing-chess/

http://drgsbrainworks.com/2015/01/10-ways-chess-builds-your-brain/

https://www.chess.com/blog/PRINCESTER/7-surprising-health-benefits-of-playing-chess

http://emchess.com/extras/benefits_of_chess.html

http://www.uschess.org/content/view/7324/28/