Knowledge - Psychology

We promise you there are no mind games here! Instead, come explore the incredible range of the human mind, from depression facts to happiness secrets.

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15 Mnemonic Devices That’ll Help You Remember Just About Anything

"Thirty days hath September" is so last year. Check out these other clever, helpful mnemonic devices to help you remember all sorts of handy little facts.

41 Little Grammar Rules to Follow to Sound Smarter

C'mon: Make your high school English teachers proud.


14 Tricky Crossword Puzzle Clues That’ll Leave You Stumped

Ready for a challenge? These prime examples of wordplay and crossword lingo will give your brain a workout.


Here’s Why Lefties Used to Be Retrained to Use Their Right Hand

Many natural-born lefties were forced into becoming righties throughout the course of history—and in some countries, they still are.


17 Memory Tricks for the Most Commonly Misspelled Words

Use these memory tips and tricks to help you conquer those hard-to-spell words!

The Grammar Rules of Sign Language Have Nothing to Do with Hands—Here’s Why

The grammar of sign language is incredibly complex. Here's how a signer's facial expressions, head movements, and even eye motions...


Grammar Rules: How to Sound Smarter

Think you know how to talk real good? Test yourself: These grammar rules will surprise even the experts.