Washington, DC — According to a 2011 national study by the Better Hearing Institute (BHI), people with untreated hearing loss lose as much as $30,000 in annual income. As a result, the cost to US tax payers could be as much as $26 billion in unrealized federal tax collections.
In just a short time, hearing aid batteries could be replaced by a drop of methanol.
Danish scientists are working on replacing the existing batteries in hearing aids with easily rechargeable fuel cells which run on methanol.
”We have come further than we ever could have hoped when we started this project of designing methanol-based batteries which can replace the traditional zinc batteries in hearing aids today”. That is what Leif Højslet Christensen, head of the Danish Technological Institute, and head of the project, says.
Childhood music lessons may pay big dividends later in life by keeping the mind healthy. Older musicians perform better on tests of memory and other cognitive factors than peers who have never learned to play an instrument, according to a study by the American Psychological Association.