So, you know how some grown-ups like to drink coffee or other drinks that have caffeine in them? Well, caffeine is something that can help them feel more awake and alert. But, if they drink too much of it, especially later in the day, it can make it hard for them to fall asleep at night.
It's kind of like when you eat a lot of candy before bedtime and then you can't sleep because you're all hyped up. Except caffeine is a little different because it affects grown-ups differently than it affects kids like you.
So, when grown-ups drink too much caffeine and it keeps them from falling asleep, they might have something called caffeine-induced sleep disorder. This just means that they're having a hard time sleeping because they've had too much caffeine.
Some of the signs that someone might have caffeine-induced sleep disorder are feeling really tired during the day, having a hard time concentrating or remembering things, and feeling irritable or moody. They might also be waking up a lot throughout the night, or they might have a hard time falling asleep at all.
The good news is that caffeine-induced sleep disorder usually goes away pretty quickly once the person stops drinking so much caffeine. If someone is having a hard time sleeping, they might try drinking less coffee or tea, or they might switch to decaf versions of these drinks. They might also try to limit other sources of caffeine, like soda, chocolate, and energy drinks.
So, remember that grown-ups need to be careful how much caffeine they drink, especially later in the day, so that they can get a good night's sleep and feel their best!