Generally, many people look at their faces with ear beads and earlobes. Ear bead and earlobe are the same part in geomantic omen. They have shouldered the burden all their lives, and different people have different opinions, and the wise have different opinions, and they are knowledgeable and well-known. Their ears are as narrow as awls, and they have to travel all their lives. These statements have not been scientifically revised.
Generally speaking, the harm to people between 30 and 50 decibels is relatively small, and the noisy environment that can be felt is 70-50 decibels. If people are exposed to 70-90 decibels for a long time, their hearing will be affected to a certain extent, which will directly damage their hearing for a long time. 100- 120 decibels can make people lose hearing in a few minutes, so be sure.
Ear is the sound wave collected by auricle, which causes the vibration of tympanic membrane through external auditory canal. This vibration causes the vibration of the ossicle, and then amplifies the sound and transmits it to the inner ear. After hearing it, the cochlea of the inner ear produces excitement, which is transmitted to the auditory pathway of the cerebral cortex through the auditory nerve. After hearing is formed, you can hear the sound.
Pay attention to protect your ears in your daily life and try to avoid hearing loss. For example, washing your hair and taking a bath in your life, including swimming, should prevent unclean water from entering your ears and causing ear inflammation. Don't scratch your ears with tools when dirt or bugs get into them. You should go to the hospital for help as soon as possible.
In noisy environment, cover your ears with your hands, or wear tools to protect your ears, avoid wearing headphones to listen to music for a long time, and keep the sound above 80 decibels.
When the ear is uncomfortable, you should seek medical attention immediately. You should not blindly take some drugs, which will lead to improper medication and irreversible effects on the ear.