The sound of stress An interesting study on the effects of sound waves on hormone release from the editors of the International Congress of Endocrinology/European Congress of Endocrinology - ABSTRACT In order to prove that different sound-waves trigger different human hormones release by the way of their vibratile impact on the bodies, we exposed 30 testers (heterogeneous for gender, age and lifestyle) to different frequencies of noisy sound-waves (not melodic and rhythmic music). We organized three sessions in different days and with different waves frequencies: 1st at 40-115 Hz, 2nd at 8200-8500 Hz, 3rd with mixed radio-waves. Blood cortisol level was measured with the Access Cortisol Kit (Beckman). An hour of exposure to a low frequency sound (40-115 Hz) diminishes the hematic cortisol concentration in 86% of the testers. On the other hand, high frequencies (8200-8500 Hz) raise cortisol values in 65% of the testers in just 30-40 minutes. After each session, testers expressed their opinion on the experience. Appreciation of low frequencies corresponds to lowered cortisol levels. Dislike of high frequencies corresponds to increased cortisol values, while displeasure of mixed radio-waves (low frequencies) is not associated to higher cortisol levels. This finding suggests that the emotional status does not interfere with cortisol release, as much as the physical properties of sound-waves do. This pilot study gave several interesting clues, to be confirmed in a larger study: 1) high frequencies raise cortisol level, while low frequencies diminish it; 2) this change is not correlated to the emotional response to the exposure; 3) older testers seem to respond in a different way. Read more about it on our website - pituitaryworldnews/the-sound-of-stress/
Posted on: Tue, 11 Nov 2014 19:30:35 +0000
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