Daydreaming, science has discovered, is an effective relaxation technique. But its beneficial effects go beyond this. Experiments show that daydreaming significantly contributes to intellectual growth, powers of concentration, and the ability to interact and communicate with others. In an experiment with schoolchildren in New York, Dr. Joan Freyberg observed improved concentration: "There was less running around, more happy feelings, more talking and playing in the group, and more attention paid to detail." In another experiment at Yale University, Dr. Jerome Singer found that daydreaming resulted in improved self-control and enhanced creative thinking ability. Daydreaming, Singer pointed out, is one way individuals can improve upon reality. It is, he concluded, a powerful spur to achievement.