Does coffee help you concentrate?

In this text, we will provide the answer to the question: “Does coffee help you concentrate?”. In addition, we will discuss the beneficial and harmful effects of coffee for your concentration and we will explain how to consume coffee safely.

Does coffee help you concentrate?

Yes, coffee helps you concentrate as caffeine works as a powerful central nervous system stimulant and helps you stay focused. Therefore, it helps maintain alertness, also improves cognition and reduces response time to external stimuli.

However, you can’t expect that everyday coffee will work miracles. Since the effects of caffeine on the body vary from one person to another. Genetic factors and body weight can influence the action of the substance.

Did you know that even the time you consume influences how your body will react? It will depend on each individual and the context in which they are inserted. But one thing is for sure, coffee is widely consumed in the afternoon, when you feel sleepy after lunch.

When we wake up, our cells carry out cellular respiration, the production of hormones, proteins. In other words, they produce energy for you to carry out your daily functions in general.

The result of this metabolism is a substance called adenosine that builds up throughout the day. It’s like the bladder accumulating urine. The same is true of adenosine, which multiplies throughout the day in cells.

This accumulation of adenosine is a signal of tiredness to the body. At night, she is at her maximum level. This signals to the body that it is time to stop, to eliminate it and to sleep.

It is in sleep that you eliminate adenosine, so that you wake up the next day and experience this cycle again.

Caffeine blocks the effect of adenosine on the brain. That’s why it’s considered a psychostimulant. It blocks your brain from feeling the effects of adenosine. This goes for both mental and physical stimuli.

What are the effects of coffee on my concentration?

Coffee taken in excess of the recommended doses can harm your health and interfere with your concentration. Because it is a stimulant, caffeine can interfere with our sleep, cause insomnia and make us more tired during the day, causing the reverse effect for people who study, who drink coffee to stay awake. 

Increased anxiety is one of the triggers caused by caffeine that prevents us from sleeping.

And many must know that caffeine is an addictive substance. And the person addicted to coffee, when spending a long period without ingesting it, can suffer from withdrawal symptoms such as headache, fatigue, irritability and even cause difficulty in concentrating, instead of stimulating as we said about the benefits of coffee.

How to consume coffee safely?

An adult should consume, on average, no more than 400 mg of caffeine per day, according to the Food and Drug Administration (FDA), a US regulatory body. The amount is equivalent to four cups of coffee. It is worth mentioning that it is not recommended to drink more than one cup at a time, so the maximum amount should be divided throughout the day.

Avoid caffeine consumption at night. Caffeine remains in the body for three to six hours before being metabolized and excreted in the urine. However, some people are more sensitive to the stimulant effect. Therefore, the general guideline is that you avoid drinking coffee after 5 pm to prevent problems with sleep quality.

Respect your body. It’s no use fighting fatigue. If your eyes are already heavy and your head can’t complete a line of reasoning, it won’t be a cup of coffee that will keep you on your feet. Better to stop activities and take a nap. Avoid consuming the drink as a stimulant when you are tired.

What is the caffeine content of a coffee?

Different varieties of coffee differ in their caffeine content, but a 240 ml cup of coffee typically contains around 95-165 mg of caffeine, depending on how strong it was.

As decaf coffee has most of its caffeine content eliminated, therefore, it only contains 2 to 5 mg of caffeine in the 240 ml cup, while the 40 ml espresso contains around 47 to 64 mg of caffeine.

One thing you should always remember is that the more roasted the coffee beans, the higher their caffeine content.

How long does the effect of caffeine on my body last?

Caffeine, the main constituent of coffee, has a half-life of about 5 to 7 hours in an average adult body. This means that half of the caffeine, as well as half of its effect, wears off in the first 5 to 7 hours.

One thing to keep in mind is that there is a direct relationship between the amount of coffee you are using and how long its effect lasts. If you are taking a higher dose of caffeine, it will stay in your system for a long time and subsequently its effect will last longer.


In this text, we provided the answer to the question: “Does coffee help you concentrate?”. In addition, we discussed the beneficial and harmful effects of coffee for your concentration and we explained how to consume coffee safely.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.