The Coffee Conundrum: Why Some Students Stay Awake and Others Still Doze Off

Coffee has over the years become the unofficial fuel for most students especially when the ‘walk’ becomes very tough. From early morning lectures to late night study sessions, almost everyone takes it.

Caffeine, the main compound in coffee, is the world’s most widely consumed psychoactive substance. It sharpens alertness by blocking adenosine receptors which are the messengers that announce to your brain that it’s tired. Once blocked, the brain basically stays awake. Its effects hit peak levels within 30–60 minutes and can last for several hours [1][2].

But it has been realized that not everyone gets the same effect which begs the question, Does caffeine have favorites?

Some students may take a cup and instantly become very productive whilst others, maybe even you, might take the same cup and feel nothing or maybe end up sleeping. Why?

A huge part of the lies in genetics. Some people break down caffeine relatively quickly. Their systems seem to process and clear it up very fast, and so the “stay awake” effect also fades away quickly . These are the people who can drink coffee at 10 p.m. and still end up asleep before midnight. Interesting right.

This can as well be attributed to Tolerance. The more regularly someone drinks coffee, the more their body adapts to it , and the less dramatic the boost may feel [3]. Moderate intake, about 200 to 400 mg per day, roughly 2–4 cups is what is safe for most young adults [1][3] and the fact that one does not get the desired effects does not mean they should go on and take it excessively or abuse it.

Once used beyond these limits, certain adverse/side defects are certain . These include : palpitations/feeling one’s heart beat fast, worsening of anxiety, stomach upset, and insomnia. It’s especially worse for people with underlying heart issues or heightened anxiety disorders[2][3].

Let’s not forget the rise in the trend of use of energy drinks in our part of the world. These also contain excessive amounts of caffeine. The high caffeine and sugar combinations in them are associated with a very sharp or rapid energy increase. However, this is followed by a quick drop afterwards referred to as a crash.

Here are some smart Caffeine Habits: First of all, we must know our personal limit and avoid excessive intake[3]. Also, we must realize that late night caffeine might be sabotaging our sleep, even if we might not feel it immediately [1][3]. In the long run, we might round up with insomnia and would need to take medications for it. Next, we should not depend on it alone. A blend of adequate hydration, naps, breaks, and light movement can equally sharpen our focus [2].

In conclusion, Let’s all note that caffeine’s effects vary widely across individuals, influenced primarily by biological factors, personal habits, and overall lifestyle [1][2]. Therefore, the goal for students and workers alike is not to eliminate its use altogether, but to approach it with a greater sense of awareness. Improving sleep hygiene, establishing healthier study practices, and understanding how our own body responds to caffeine can in the long run offer far more sustainable benefits.

References

1. Nehlig, A. (2016). Effects of coffee/caffeine on brain health and disease: What should I tell my patients? Practical Neurology, 16(2), 89–95.
2. Smith, A. (2002). Effects of caffeine on human behavior. Food and Chemical Toxicology, 40(9), 1243–1255.
3. Grosso, G., et al. (2017). Coffee, caffeine, and health outcomes: An umbrella review.Annual Review of Nutrition, 37, 131–156.