Ever wonder what professional athletes are doing to stay mentally strong? Journaling. According to Washington Post sports reporter Adam Kilgore, more and more NFL players are turning to journaling to deal with the mental stress of the game. Once seen as something mostly done by women, journaling is now gaining ground as a powerful mental health tool — for everyone. Here’s why it works:Psychologists say that when you write about your feelings, you’re literally offloading your stress onto paper.