Quadrant+4

== =Quadrant 4=

Quadrant 4 of our group's research graph is about hearing loss in modern teenagers.

Hearing is one of the ability that allow people to hear to analyze and understand its surroundings and environment. As teenagers are now in the trend of various musics such as, classic music, rock, orchestra, pop, and foreign countries' other types of its own music.

When teenagers lisens to musics, they often use earphones, headphones, and other utilities as to better hear its sound. Many of the teenagers listens to the music in a louder volume than it needs to be.

When a person listens to a volume of music or any sound that is far too loud for their ears, it usually leaves some damage on its eardrum.

When the eardrums of the human body is injured, it causes the ability of hearing of that person to decrease. Generally, it is the middle ear that is being damaged within the ears, and since the ears are receiving damage from music, which is a vibration sound wave, it technically weakens the ability of the bones inside of the ears to respond to its vibration and produce signals to be transmitted to the brain to be analyzed.

As the figure on the top shows, the eardrum is connected to various bones inside of the ear, and its position is about in middle of the ear with its connection to transmit through and analyzed by the brain. media type="youtube" key="q6Z0zoQrWNA" height="367" width="758"

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