Coffee, according to one meme which I saw just recently, is essentially “a God.” That is of course understandable.
Humanity, not surprisingly, is consuming about 150 million of 60 kilogram bags of the bean-like seeds each year based on the 2015 data provided by the International Coffee Organization. And since 2011 says the same group, the world’s average consumption of coffee has been on the rise by about 2 percent. Hence, researchers love exploring the science surrounding the aromatic bag of beans, and most of which, luckily for us humans, are of good news.
But not all studies highlight the benefits of drinking a warm cup of latte. In fact, one new research, which I stumbled upon yesterday, is suggesting that anyone’s daily coffee intake could actually impede hearing recovery. In other words, if you have the daily habit of drinking a cup of joe, and you, one day, suffer a short-term hearing loss, then, chances are, your recovery will be delayed.
It is kind of weird research. I know. But the group behind the research is underlining the fact that the study is for someone who is drinking about 25mg/kg of caffeine each day. And that someone is always exposed to loud noises (like let’s say, a concert DJ).
The new research is from scientists at the McGill University, and it is now published by the JAMA, with the title “Association of Caffeine and Hearing Recovery After Acoustic Overstimulation Events in a Guinea Pig Model.”
Coffee and hearing loss
You shouldn’t drink a cup of coffee after a loud party or a concert. This is certainly the main fact that demands an underline in the research.
The McGill Publications has the thorough report about the new coffee study.
Author Dr. Faisal Zawawi of the McGill Auditory Sciences Laboratory has told the site that when the human ear is exposed to loud noise, it can suffer from a “temporary hearing reduction,” which is also called auditory temporary threshold shift. This human disorder is reversible in the first 72 hours, Dr. Zawawi adds, but he warns that if symptoms persist, the damage could become permanent.
And here’s where we can insert the word coffee. The team of scientists, which includes Dr. Zawawi, has explored the stuff that could impact the human ear’s ability to recover from the said disorder. They suspect that caffeine–based on their previous work, and because it is so common especially in environments where noise can be a health hazard–might have a link with the hearing disorder.
For the latest research, they have used an animal model, exposing two groups to a sound of 110 dB–which is comparable to the sound in a loud rock concert–for one hour. One group was given caffeine, and the other was caffeine free. A day after that, they noticed that the hearing loss was similar in the two groups.
After eight days, says the researchers, the caffeine-free group had recovered almost completely, while hearing impairment persisted in the group which took the daily caffeine.
Dr. Zawawi said the data that they have confirmed the “clear negative impact on hearing recovery” of exposure to loud noise coupled with the daily consumption of 25mg/kg of caffeine. He, however, clarified that further research is needed to understand the effects of coffee on human’s hearing, but they say the results are promising.
Of course this study won’t affect our daily coffee habits, and it is safe to say that some of you still recall other research papers which, unlike this new one, are heralding only good news for our favorite “god drink.”