ELI5: Why do I feel tired all the time?

Imagine your body is like a toy car. It needs energy to move around and do things. This energy comes from food, like gasoline for the car. If you don't give the car enough gasoline (food), it won't run for very long and you'll feel tired!

Here are some reasons why you might feel tired all the time:

• Not enough sleep: Your body is like a phone that needs to be charged. Sleep is when your body recharges. If you don't get enough sleep, your battery is always low.

• Bad food: Eating too much candy or junk food is like putting bad gasoline in your car. It might give you a quick burst of energy, but it doesn't last, and it can make you feel even more tired later. Healthy food, like fruits, vegetables, and protein, is like good gasoline that keeps you going for a long time.

• Not enough exercise: Even though it sounds weird, being lazy can make you tired! When you exercise, your body gets stronger and better at using energy. Not exercising is like letting your car sit in the garage all the time; it gets rusty and doesn't work as well.

• Too much screen time: Looking at screens (phones, tablets, TVs) for too long can make your eyes and brain tired. It's like staring at a bright light; it can wear you out.

• Feeling sad or worried: If you're feeling down, your body can feel tired too. It's like the car is carrying a heavy load.

• Being sick: When you're sick, your body is fighting off germs. This takes a lot of energy, so it's normal to feel tired.