The tempos of songs released by many popular musicians increase into the early 30s, but then gradually decrease, dropping below teenage levels by the 50s.
“We saw this very clear downward trend.” Jeff Lack “We are convinced that tempo really declines over the course of life,” say researchers from the University of Jyväskylä in Finland.
Beats per minute, or tempo, is an important characteristic of music that can be used to convey a range of emotions.
Source: www.newscientist.com