Exposure to loud noises over prolonged Tinnitec Supplement periods of time is the greatest contributor to high frequency hearing loss. Occupational noise from machinery such as in construction, factories, law enforcement, military and farming damages and ultimately can destroy the delicate hair cells in the ear, causing high frequency hearing loss.
Likewise, exposing the ear to loud music whether through amplifers (at concerts or clubs) or headphones (iPods or other music players) can also cause irreversible damage.High frequency hearing loss is most noticeable in speech. Higher sounds like "s" and "th" become hard to distinguish. Women's voices are often more difficult to understand, and speech in general sounds muffled. It becomes harder to hear in noisy areas, and certain sounds will appear noticeably louder than others.
The best way to prevent high frequency hearing loss (beyond what is normal for aging) is to protect your ears. Wear ear plugs when being exposed to loud noises, and be sure not to play your music above 80 decibels (60% volume on an iPod).