Golf requires strong mental focus and discipline. The best golfers develop "tunnel vision" and focus only on the next shot, letting the rest of the world fade away. They also have a strategy to cope with mistakes by scolding themselves internally for 10 yards after a bad shot, then calming down. Golf demands mental strength as well, as only determined players can finish all holes of a long game without giving up. The game also provides stress relief through being outdoors in nature.