A friend of mine has been working on an app (based on research from Dr. David Eagleman) to help you track any cognitive declines from, among other things, participating in contact heavy sports.
One use is for coaches to mandate players retake it periodically, so players can stop playing before the point of no return.
One use is for coaches to mandate players retake it periodically, so players can stop playing before the point of no return.
https://braincheck.com/
https://techcrunch.com/2016/10/27/braincheck-raises-3-millio...
http://www.tmc.edu/innovation/companies/brain-check/