Decibel - Medical Glossary

Understanding Decibels and Sound Measurement?

Sound is measured in decibels to quantify its pressure and intensity. The scale is logarithmic, meaning a small increase in decibels represents a large increase in sound energy. For example, a sound at 80 dB is much louder than one at 60 dB. Safe levels are typically below 85 dB.

Symptoms and Signs of Noise-Induced Hearing Damage?

Exposure to loud noises over time can lead to symptoms like ringing in the ears (tinnitus), difficulty understanding speech, or muffled hearing. These symptoms may indicate early signs of noise-induced hearing loss. Persistent or worsening symptoms should be evaluated by a hearing specialist.

Causes and Risk Factors for Noise-Induced Hearing Loss?

Prolonged exposure to loud environments, such as concerts, construction sites, or using headphones at high volumes, increases the risk of hearing damage. Sudden exposure to extremely loud sounds, like explosions, can also cause harm. Factors like age, genetics, and pre-existing conditions influence vulnerability.

Prevention and Recovery from Noise-Induced Hearing Loss?

Prevention strategies include wearing hearing protection in loud environments, limiting the duration of exposure to high noise levels, and following the 60/60 rule for headphones—listening at no more than 60% volume for no more than 60 minutes. Recovery is limited, but hearing aids and therapies can help manage damage.

When to Seek Medical Help for Hearing Concerns?

If you experience sudden hearing loss, persistent ringing, or difficulty understanding speech, seek medical advice. Early diagnosis and treatment can prevent further damage. Regular hearing checkups are also recommended for individuals exposed to loud noise or with a family history of hearing loss.