KOSICE-SACA, SLOVAKIA: One and Two-day-old newborn ease the stress after the birth. Newborn babies daily undergoing five sessions of twenty minutes each, when they listen to a variety of musical genres from classical to easy listening. JOE KLAMAR/AFP via Getty Images
Researchers have surveyed more than 2,500 people in the United States and China about their emotional responses to these and thousands of other songs from genres including rock, folk, jazz, classical, marching band, experimental, and heavy metal.