Why do I crave sugar or carbs when I'm sleep-deprived?

When you don't get enough sleep, your body goes through some changes that can make you feel hungrier. One of these changes is an increase in a hormone called ghrelin, which makes you feel hungry. This can lead you to crave foods that are high in sugar and carbs.

Here’s how it works:

1. Hormone Changes: After a night of not enough sleep, your body makes more ghrelin. This hormone tells your brain that you're hungry, even if you might not really need more food.

2. Brain Activity: When you're tired, the part of your brain that helps control how much you want food becomes more active. This means you might want foods that give you quick energy, like sweets and carbs.

3. Appetite Control: The way your brain controls how much you eat can get mixed up when you're sleep-deprived. This makes it harder to say no to foods that are high in sugar and carbs.

So, when you're tired, your body and brain work together in a way that makes sugary and carb-rich foods seem extra appealing. If you find yourself craving these foods when you're tired, it might be your body's way of trying to get more energy quickly.