“Listen to the noise they make like the rumbling of chariots, like the roar of fire sweeping across a field of stubble, or like a mighty army moving into battle”” - Joel 2:5
Ears are sensitive organs and loud noises can damage them. If you have trouble hearing the person next to you speak, the noise is already in the danger level. Normal conversation, alarm clocks, and street sounds measure 80 decibels (dB) which is just under the point that is safe (85 dB). Sounds from rock music, chain saws, subways, lawnmowers, and snowmobiles range from 90-110 dBs and over time will cause hearing loss. To prevent this type of permanent loss, wear earplugs to soften the sound and when possible, limit your time around any loud noise.