The stress hormones namely cortisol and adrenaline are secreted by the adrenal glands in response to Adrenocorticotropic hormone or ACTH. The ACTH, composed of 39 amino acids is the primary stimulation for the production for of adrenal cortisol. It is synthesized by the pituitary in the hypothalamus in the brain in response to corticotropin-releasing hormone.
High-intensity exercises plus energizing music of fast tempo increase the cortisol levels, while the slow, quiet, calm and classical music does the opposite. The people are likely to respond to music they like, rather than to specific frequencies without knowing which music increases or decreases the cortisol levels.
The blood cortisol levels of those with imminent surgery get reduced by 50% with the calming music, jointly chosen by the patient and music therapist.
The music aids untrained runners to produce higher levels of cortisol. The tunes of brass bands before and during the games whip the passions of players and spectators. Prolonged exposure to fast music like rock or heavy metal may induce addictive cortisol levels like coffee.
Music relaxes even the newborns and it could be played during routine works. It relaxes the tense muscles and gives energy during exercising, bathing, meditation, and yoga.