Alzheimer’s patients and hospital staff prescribed music in NHS trial

Exclusive: playlist based on listeners' backgrounds and tastes found to lower heart rate, agitation and distress

Bob Marley knew it when he sang on Trenchtown Rock: One good thing about music when it hits you, you feel no pain."

Now trials are under way at an NHS trust to see if an algorithm can curate music playlists to reduce suffering in Alzheimer's patients as well as in stressed medical staff.