Instead of focusing on exercise ball inflation pressure, focus on the ball's intended diameter, which is noted on the packaging and sometimes on the ball itself.

Exercise balls are primarily used for, well, exercising. You can use them for strengthening your core, improving your stability, and toning your arms. They’re not just great for all things fitness, ...

I’ve never found much use for exercise balls. I see people sitting on them at the gym, but outside of that—you got me. It turns out, they can be very helpful swing aids. In fact, as up-and-coming ...