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The BBC spoke to Dr Renee Almeida, an
at London's Imperial College. She said there was an
in the number of young people complaining about
hearing. She said people need to hear many kinds of sounds. One important listening skill is to focus on and decide which
are helpful. Our ears must filter out sounds we don't think are
. Dr Almeida said: "There is a difference between hearing and listening. We can see that listening
are suffering." Another audiologist suggested that
can lead to bad listening
. She said we can "forget" to hear important sounds, like cars
. Headphones may even cause
in hearing spoken words.