Sound is incredibly dangerous to our body Like, in fact, everything in this world, if you overdo it... Above 65dB, the volume of sound greatly increases your heart rate and breathing - you can roughly compare it to loud speech. Above 90 dB, it reduces hearing sensitivity and can provoke headaches, nausea and dizziness. Such loudness can be compared to a passing train. Over 100 dB, it can already damage the hearing aid - it can be compared to the noise of a nightclub or a helicopter taking off. More than 130 dB will cause concussion and trauma to the hearing aid - the sound of a rocket launch or a gun shot near the muzzle of the barrel. More than 160 dB is almost guaranteed to cause ruptured eardrums and respiratory trauma. Louder frequencies are already used in specific weapons...