Is Caffeine Actually Making You More Tired?

If you're tired during the school day,  getting some caffeine might seem like an easy solution. You drink something caffeinated, feel more awake, and make on with your day. But what if that caffeine is actually making the problem worse?

I found a research study that looked at caffeine use in young teenagers and how it was connected to daytime sleepiness. The results were pretty interesting because while caffeine might help you feel awake for a little while, there could be a bigger connection between caffeine use, sleep, and how you feel during the day.

What Did the Researchers Do?

The researchers followed a group of young teenagers over time and looked at how much caffeine they were consuming. They also looked at how sleepy they were during the day and whether they showed certain behavior problems. 

Instead of just looking at one specific day, they collected information over time. This allowed them to see how caffeine use and daytime sleepiness were connected as the teenagers got older.

What Did They Find?

One of the biggest things they found was that caffeine use was connected to more daytime sleepiness.

At first, that sounds kind of backwards. Isn't caffeine supposed to make you feel less tired?

The problem is that caffeine doesn't actually replace sleep. It can make you feel more awake for a  while, but if you're already not getting enough sleep, drinking caffeine doesn't fix the reason you're tired in the first place.

The researchers also found a connection between caffeine use, daytime sleepiness, and conduct problems. This doesn't mean that drinking caffeine automatically causes someone to have behavior problems. It just means the researchers found these things related. (PubMed Central)

Why Does it Matter?

I think this is especially interesting for teenagers because being tired during school is pretty normal. Between homework, sports, jobs, and staying up later than we probably should it's easy to feel exhausted the next morning.

It can be tempting to use caffeine to get through the day. But if you're already tired because you're not sleeping enough, caffeine isn't really solving the problem. It might just be covering it up for a little while.

My Takeaway

Before reading this study, I mostly thought of caffeine as a substance that provides energy. I, like many others my age, did not think about the connection between caffeine, sleep, and daytime tiredness.

The biggest thing I took away from this article is that feeling tired isn't always something you can fix by just trying to feel more awake. Sleep is still important, and caffeine can't replace it.

So the next time you're tired during school, maybe the answer isn't just finding something to wake yourself up. It might be worth looking at why you're tired in the first place.

citation: Pubmed.ncbi.nlm.nih.gov. (n.d.). https://pubmed.ncbi.nlm.nih.gov/39863999/