You'll probably need to take a nap on the slitted sheet after learning how to say this hard tongue twister out loud. This ...

Tongue twisters are those delightfully tricky phrases or verses that are designed to challenge the articulation and coordination of speech. The hardest tongue twister is packed with sequences of ...

It might not look that tricky at first glance, but in a 2013 study by MIT speech communication scientists, the researchers created this tongue twister, which ended up being the hardest tongue ...