My son enjoyed the games here and was challenged (did very well), but he said they always made his brain tired and didn’t seem to help him with school work.  Ever since he found out he wouldn’t have a chance to pursue a an important friendship over a year ago, he says he literally can’t think anymore.  His math ability especially went way down.  Any suggestions?  He hasn’t been playing them anymore and I’m planning on not renewing for next year.