Need to turn your at-home fitness up a notch? A medicine ball could be your new best friend. If you’ve never used a medicine ball for your workout then you’re missing out. They’re about as old-school as training equipment gets, but they’re still found in gyms everywhere for a reason – they’re a brilliantly effective training tool. Medicine balls are particularly useful for explosive movements, and there’s no better exercise for relieving stress in the gym than the medicine ball slam, where you hurl one into the ground as hard as possible. They’re also great for core exercises and moves where you put your body in an unstable position to challenge your balance. And due to its versatility, this concept has stood the test of time and strength. A medicine ball can challenge your strength, endurance, and balance.