how does zero gravity work??

 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 treadmills. While this might be fine if you enjoy running, it's actually rather boring compared to other types of exercise. When you're in microgravity, there's nothing for your legs and feet to grab onto, so they're completely unsupported. This forces your body into different movements, like swinging your arms, twisting your torso, and jumping up and down.

Zero gravity works by slowing down your heart rate. In zero gravity, blood moves slower through your veins since there are no objects against which they can move, thus causing less pressure on your heart while still allowing blood to flow at the same level. This means that the oxygen content in your blood remains constant; however, this is not enough to keep the cells alive. Your body may live under zero-gravity conditions for several days but after a certain period of time (about 20 hours) your body begins to die from lack of oxygen. The reason behind this is that your heart beats faster to compensate for the lack of movement.