A 2016 study by McGill University found that it takes only a tenth of second for someone else to understand the intent behind a meh, ugh or uh-uh-ah-ah.
Words, it turns out, are less effective on their own, as we mentioned in the video above. Sounds, on the other hand, pack a communication wallop of information.
The McGill study is yet another example of how paralanguage — everything from the sounds we make to the gestures and facial expressions we form — contributes to truly understanding one another.
Perhaps this is why we lose focus when our fellow humans speak in paragraphs longer than three sentences.
Also a reminder that we can probably get away with grunts and shoulder shrugging on those low-energy days when words are just too much to form.