Hi.im  an iranian man that is about 30 years hsve been playing chessm, and im really intetrested in chess as my first favorite!?and absolutly believe in all whom thay like chess and continuing this sport- Science are special who are from the more clever than the others,i have herd that chess players are an anti alzimer parkinson hormons like depamin and cerotonine are more in their blood to the others that not intersting to chess!!anyway , i wish the succeeding for you in your challsnging!?wish the bests for you all.kapabelakar.