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Health Library
How You Hear
Learn how the parts of your ear work together to help you hear and how damaged hair cells affect your hearing.
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Health Library
Understanding Hearing Loss
As you age, some hearing loss is normal. You lose more than the ability to hear how loud a sound is. You also lose the ability to hear certain types of sounds. For example, you might not be able to hear some of the high-pitched sounds of a child's voice.
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Health Library
Hearing Protection: Measuring Sound
Learn about how loudness is measured and when you need hearing protection.
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Health Library
Choices for Hearing Protection
Learn about how earplugs and earmuffs can protect you from hearing damage.
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Health Library
Hearing Protection: Quiz
How much do you know about protecting your hearing? Take the quiz to find out.
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Health Library
Understanding Heat Stress
In hot environments, your body may have trouble keeping its temperature at a safe level. As a result, your body temperature rises to unsafe levels. This is heat stress. Heat stress can develop quickly. It can also be very dangerous to your health.
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Health Library
Heat Stress: Warning Signs
Even severe heat stress can appear suddenly, so learn the warning signs and how to treat them.
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Health Library
Understanding Headache Pain
Headache pain can start in different structures in the head. The brain itself doesn't hurt, but other parts of the head do. Very rarely are headaches a sign of a serious medical problem.
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Health Library
Preventing Migraine Headaches: Triggers
The first step in preventing migraines is to learn what set them. off. You may then be able to control your triggers to prevent or reduce the severity of your migraines.
Learn More Preventing Migraine Headaches: Triggers
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