If you purchase an independently reviewed product or service through a link on our website, we may receive an affiliate commission. Learn more about our policies and reviews. We all know that sitting ...

It’s not just for beginners, either.

Perched on a large blue exercise ball at her desk, Trisha Milligan says she is glad she’s been able to replace her classroom chair with a different kind of seat. “I can move around,” said Trisha, 9, a ...