In May 2019 researchers from Taiwan published their review of the medical scientific literature to assess the effectiveness of music in reducing anxiety levels among women during labour. A total of 14 studies involving 1,310 individuals were included in the review. Results showed that those who listened to music experienced a significant decrease in anxiety levels, heart rate and blood pressure levels when compared to those who had not listened to music.
Lin HH et al. Effect of music interventions on anxiety during labor: a systematic review and meta-analysis of randomized controlled trials. PeerJ. 2019 May 15;7:e6945.