1. Deafness / Hearing Loss

2. Description
An inability to comprehend verbal language due to an inability to hear characterizes deafness.
The official definition of deafness from the Individuals with Disabilities Education Act (IDEA) is “a hearing impairment that is so severe that the child is impaired in processing linguistic information through hearing, with or without amplification.”
The phrase “with or without amplification” is significant as it indicates that a hearing aid will not provide sufficient accommodation so that the student can succeed in the classroom.

3. Causes Heredity Diseases such as ear infections and meningitis Trauma
Certain medicines
Long-term exposure to loud noise
Aging

4. Symptoms
Can not hear sound.

5. Prevention
Protect your ears in the workplace. Specially designed earmuffs that resemble earphones can protect your ears by bringing most loud sounds down to an acceptable level.
Have your hearing tested. Consider regular hearing tests if you work in a noisy environment. Regular testing of your hearing can provide early detection of hearing loss.
Avoid recreational risks. Some activities, such as riding a snowmobile, hunting or listening to rock concerts for long periods of time, can damage your hearing. Wearing hearing protectors or taking breaks from the noise during loud recreational activities can protect your ears.
Turning down the volume when listening to music can help you avoid damage to your hearing.

6. Treatments Hearing aids Assistive hearing devices Sign language
Lip reading

7. Celebrities with deafness
Lou Ferrigino suffered a series of ear infections and lost 75 to 80% of his hearing, though his condition was not diagnosed until he was three years old.
Halle Berry – 2001 Best Actress Academy Award winner claims that she has 80% hearing loss in one ear due to domestic abuse.
Rob Lowe is completely deaf in his right ear.

8. This is what deafness sounds like

9. Sources https://medlineplus.gov/hearingdisordersanddeafness.html