At work, Pam O’Donnell types at her computer, talks on the phone and, every so often, bounces a bit on a big blue ball. O’Donnell has an office chair, but this doesn’t mean she uses it. She prefers to ...

Here’s how to find a great ball chair to keep you active, reduce back pain, and engage your muscles even when you’re at your desk all day. By Carsen Joenk Updated Aug 18, 2023 12:01 PM EDT We may earn ...