Cosmos

 1. Zero gravity works better than normal gravity  You can get yourself into some pretty weird positions while floating around in free space or even just sitting still on Earth's surface. With no gravity at your back, your muscles are forced to do their jobs without any assistance from gravity. This makes them stronger and helps prevent injuries caused by muscle breakdown. Your joints are also healthier because they don't have to bear the weight of your body as much.  2. You can sleep anywhere  If you've ever tried sleeping in bed with someone else beside you, you know that it's hard enough to fall asleep. If you're floating around in a spaceship, though, you'll be able to drift off instantly. That means you'll be able to rest anywhere in the ship—including chairs or couches—and not worry about waking anyone up.  3. Zero gravity is great for exercise  When we think about exercising in zero-gravity conditions, the first thing that comes to mind is running on...