Earwax actually protects our ears

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I've read this article in yahoo detailing that the gross looking ear wax inside our ears were actually meant to protect our ear canal from outside threats. But you need to clean it every once in a while, at least once in a week will do. But it's too late for me, because I'm half deaf now because of excessive ear cleaning. Then I realized it has also happened to mom as well which is why she's deaf too. I could still hear from my other ear but it's very low. I wanted to buy hearing aide but it's extremely expensive. Maybe I should start learning sign languages.