Music influences which autonomic functions?

• A. Heart rate
• B. Blood sugar level
• C. Bone density
• D. Hair growth

Answer: (A)

Music can alter arousal levels, and the autonomic nervous system responds by adjusting heart rate. When you listen to fast, upbeat music, arousal tends to increase, engaging the sympathetic branch and raising heart rate; calming music often enhances parasympathetic activity, which can slow the heart rate and promote a sense of relaxation. This link between music, emotion, and autonomic regulation is why heart rate is the autonomic function most commonly influenced by listening to music.

Blood sugar levels are governed mainly by hormones like insulin and glucagon and by liver glucose production; while stress can influence glucose briefly via autonomic pathways, music is not typically a direct driver of glucose levels. Bone density and hair growth aren’t controlled by autonomic activity in the moment, so they aren’t the autonomic functions most affected by music.