The study asked participants to score the speakers and items in films of sales presentations with various hand motions; ...

This week, we’re sharing a special episode from TED Tech exploring Gen Z slang words like "unalive," "skibidi" and "rizz." Where do these words come from — and how do they get popular so fast?

If you’re plugged into the Internet, chances are you’ve seen a TED talk—the wonky, provocative web videos that have become a sort of nerd franchise. TED.com is where you go to find Facebook COO Sheryl ...