Stress. It can motivate our finest moments—adrenaline-fueled superhuman strength has saved individuals pinned by 3,000 pound vehicles—or give us gray hair prematurely (see every President ever). Most people react to environmental stressors in a kind of involuntary, knee-jerk manner. There is a better way, though. Think of your brain as an animal that can be trained. Just as intentionally smiling or laughing can actually positively enhance your mood, curating your thoughts and thought patterns can radically and dramatically transform your daily reality.