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  • Title: Effect of 90 decibel noise of 4000 hertz on blood pressure in young adults.
    Author: Mahmood R, Khan GJ, Alam S, Safi AJ, Salahuddin, Amin-ul-Haq.
    Journal: J Ayub Med Coll Abbottabad; 2004; 16(2):30-3. PubMed ID: 15455613.
    Abstract:
    BACKGROUND: Almost every individual dislikes excessive and unnecessary noise. Noise exerts various adverse psychological and physiological effects, on human body including a rise in blood pressure. METHODS: 117 volunteer medical students, aged 18-23 years were exposed to 90 decibel noise of 4000 hertz for 10 minutes, produced by audiometer in a sound-proof room. Blood pressure was recorded every three minutes. RESULTS: Blood pressure increased during exposure to noise. Average rise in systolic blood pressure was 2.462+/-0.532 mm Hg and average rise in diastolic blood pressure was 3.064+/-1.047 mm Hg. Blood pressure came to resting value within two minutes after stopping exposure to noise in more than 50% of the subjects. CONCLUSION: Systolic and diastolic blood pressure increases due to noise exposure.
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