1. Noise stimulation (95 dBA) for 20 min caused a significant increase in diastolic (12%, P < 0.001) and mean arterial pressure (7%, P < 0.001) in 15 healthy normotensive male subjects.

2. There was no significant change in systolic blood pressure or heart rate during exposure to noise.

3. Adrenaline, noradrenaline, prolactin, cortisol and growth hormone concentrations in venous plasma were not affected during noise stimulation.

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