How Long Can You Survive without Oxygen? You live, work, sleep, eat, and have fun without giving a second thought to the miraculous substance that makes it all possible: oxygen. Most of us can go without it for about half a minute before our body demands a breath of this gas. Can you imagine what would happen to our planet if oxygen disappeared for just 5 seconds? Spoiler: the results would be disastrous Date: 2022-04-19