Chewing, slurping, and gum smacking - all of these sounds can be like nails on a chalkboard for some people.
A new study from the UK hopes to find the reasons why certain noises can be extremely irritating for people.
Experts say the key is the part of the brain that processes emotion.
For those diagnosed with misophonia, certain sounds can lead to severe anxiety and even panic attacks.
When neuroscientists looked at patients brain scans, they found the emotions area of the brain goes into overdrive when listening to chewing, eating, drinking and even heavy breathing.
