Exercise balls are supposed to help with fitness… but these fails prove they’re better at causing total chaos! Watch as people bounce, flip, and crash in the most unexpected ways. Who knew working out ...

Here's how to get more bounce from a normal tennis ball - buddy it up with a heavier ball for twice the impact. Hold a ball in each hand and decide which ball weighs more (has greater mass).

Sixty seconds of this exercise is a challenge ... The first rep is always a bit chaotic—slamming the ball, catching it mid-bounce, and quickly finding your rhythm. It’s a test of concentration ...

The International Football Association Board (IFAB) is set to introduce a new rule for next season, with goalkeepers who hold on to the ball longer than eight seconds conceding a corner.