If you've ever taken a Pilates class, you are probably familiar with the humble Pilates ball. It might seem small, but boy, is this piece of kit mighty. Whether you're looking to level up your at-home ...

Have a tennis ball in your garage? It may unlock clues into your lifespan. A quick test of strength with a tennis ball may be able to tell you if you’re going to live to 100 years old. Well, grip ...