Overview
Key Points
Sources
Chess players that went insane, DARPP- gene https://www.chess.com/forum/view/general/-masters-who-proved-that-chess-kills-your-brain-and-you-life&;you-are-warned (https://www.chess.com/forum/view/general/-masters-who-proved-that-chess-kills-your-brain-and-you-life---you-are-warned)