By age 2, most kids know how to play pretend. They turn their bedrooms into faraway castles and hold make-believe tea parties ...

Somewhere between eight and four and ten and two is recommended, with both hands at the same height and elbows slightly bent ...

You spend countless hours optimizing your site for human visitors. Tweaking the hero image, testing button colors, and ...

The short answer: It might help more than we think.