Fast-tempo music boosts motivation when people are doing cardio. New research pinpoints how many beats per minute are ideal in different exercise environments.

Demi Lovato is back in the studio – and she's offering a sultry new song for the summer.

Exercise scientists have shown that moving to slow workout music actually offers more benefits than listening to a fast tempo song.

Every Top 40 hit in 1965 was in a major key and had a fast tempo. In 2009, more than half of the Top 40 songs were in a minor key. Has there been... Why We're Happy Being Sad: Pop's Emotional ...