7 Sounds we're hardwired to hate

Noise can be arguably described as sound we don't love. In this post we list the seven of the worst aural offenders.

Here's the contenders...

And just so you know: sounds higher than 85 Decibels (dB) can damage your hearing. Yep. You have health reasons to escape sounds of the loud and unwanted kind.

1. A blaring alarm clock (80 decibels): I think most of us would agree with this. There’s an extremely satisfying feeling knowing that you don’t have to set up a waking time the next morning. The idea of waking up on your own time and sleeping in, is such a wonderful moment. Sometimes however, the alarm clock rings take away one of the most precious things— our sleep. You can try it with your favorite song, but soon enough you’ll start hating on it.

2. An electric drill (95 decibels): Yes, that is on the top of the list too. As most of us have experienced, it starts while we are asleep, which makes it even more unbearable. Why does it always start at eight in the morning anyway, is that some kind of ploy? No matter the time of day noise pollution, especially in cities is a growing problem, is prematurely ageing the world's ears and becoming an ever greater threat to our hearing health.

3. A vuvuzela (127 decibels): Everyone hates this. Even if your favorite team is winning, let’s face it, the sound of a vuvuzela brings all your nerves to their pick. How our ears survived the sound of the South African world cup is a miracle.

4. The sound of nails on a chalkboard (varying decibels): Scientists at MIT, analyzed this topic and found that the two most aversive aspects of a sound are sharpness—caused by high frequencies—and roughness—caused by fluctuation of frequency intensity. Since previous studies eliminated high frequencies as the contributing to the unpleasantness of nails on a chalkboard, the MIT study attributed it to "roughness." The process of fingernails rapidly catching and releasing the surface of a chalkboard makes for a particularly hellish sound.

5. Screaming (88 decibels): Maybe it’s not much the sound, but it is more so the feeling we get when we hear people scream. The loudness, the negative energy... Research shows that the Brain activity in the amygdala increased for unpleasant sounds like screams. “It appears there is something very primitive kicking in,” says Sukhbinder Kumar, the paper’s lead author, from Newcastle University in England. “Although there’s still much debate as to why our ears are most sensitive in this range, it does include sounds of screams which we find intrinsically unpleasant.”

6. A phones line... that's busy (45 decibels): It's not the sound itself, although nobody would list the beep on their all-time favorite list. It's the psychoacoustics of the matter. A busy phone line represents the sound of no one there. Of can't be reached. Of existential abandonment. No wonder we hate it.

And finally, and unanimously...

7. A knife scraping off a bottle (varying decibels): When Researchers from Newcastle University rounded up 13 volunteers, stuck them in MRI machines, and studied their brains while exposing them to a total of 74 sounds, the sound of a knife on a bottle was rated the most unpleasant sound in the world.

So, if you too want to give your ears a rest from all the noise, then check out the Mimi Hearing Test or Mimi Music apps. Not only will you get your free, certified hearing test, that you can take on your smartphone, but we use your unique hearing profile to adjust sound perfectly to your hearing ability, so you can always listen safely and clearly – no matter the noise around you.