Imagine your body has a sleepy switch, and some people turn it on faster than others. When you're tired, this switch helps you go to sleep quickly, like flipping a light switch. But if the switch is slow or broken, falling asleep becomes harder. This switch lives inside your brain and uses messages from your body.
Examples
- A child falls asleep quickly after a bedtime story, while their older sibling lies awake for hours.
- A person can go to bed and fall asleep in minutes, but their friend needs an hour of reading before they drift off.
- Some people fall asleep on the bus during a long ride, while others remain wide awake.
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See also
- How do vaccines actually work to prevent disease?
- What role do mitochondria play as the "powerhouses" of cells?
- What are athletes?
- Why Do People Have Different Shapes of Faces?
- Why Do Humans Have Such Varied Skin Colors?
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Categories: Biology · sleep,biology,circadian rhythm