11/19/2023 0 Comments Soft alarm tones![]() ![]() “Studies of firefighters’ reaction to the alarm signal indicate that the onset of both physiological and psychological stress induces measurable biological effects. Normally, these physiological changes are brought about by intense sounds of sudden onset, much as a firefighter would experience going from a relaxed state in the station to an alarm response. These changes may include a rise in blood pressure, a rise in pressure inside the head, and increased sweating. “One theory indicates that noise, like other stressors, triggers a startle response, which induces a widespread change in the body’s activities. Noise has been shown to cause nervousness, fear, and psychosomatic illnesses as well as to disturb sleep. “Studies have found noise to be a causative factor in stress-related illnesses, such as hypertension, ulcers, allergies and neurological disorders. The United States Fire Administration study, “Fire & Emergency Service-Hearing Conservation Program Manual” (FA-118/1992), states the following: The stress that firefighters are exposed to, however, begins with the incident dispatch they receive in the fire station. When fire chiefs and safety officers think of firefighter safety, they don’t often consider it in relation to their fire stations’ alerting systems. ![]()
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