When we don't eat, our bodies start to break down stored fat for energy, a process called ketosis. This can lead to some pretty weird and wonderful side effects, including bad breath, fatigue, and even hallucinations. But don't worry, you won't start to see pink elephants dancing around you... unless you're really, really hungry.
In all seriousness, the length of time we can survive without food depends on various factors, such as our weight, age, and overall health. For example, a person with a higher percentage of body fat can survive for longer without food than someone who is underweight. And, fun fact, our brains can actually shrink if we don't eat enough - talk about a brain drain!
But what about water? Can we survive without drinking water for a long time? The answer is, not for very long. While we can go without food for several weeks, we can only survive for around 3 to 5 days without water in a hot and dry environment. So, if you're ever stuck in the desert without food or water, just remember - water is the new gold!
How long can you go without food? Here's the impact of a hunger strike
