caffeine makes me tired

Caffeine Makes Me Tired: Myth Explained

Coffee is an amazing health drink and sometimes it is meant to keep me awake and energetic to begin the day. But unfortunately coffee makes me tired. I have tried to do a lot of research and ask why coffee makes me sleepy.

Guess what?

I have come up with the best answers that can clarify all doubts in a twinkle of an eye.

Just stick through with me.

Coffee contains caffeine and caffeine is a stimulant. It preoccupies itself with increasing the alertness of the body and the energy level as well. I have actually been wondering why I seem to get hyperactive the moment I get to drink coffee and the next moment coffee puts me to sleep.

Well, the answer is right here, at your doorstep. Coffee is a sedative. It is as simple as that.

That content in it called caffeine actually is not the cause of the fatigue. Coffee is just a drink that is super complex. Sometimes, it makes one feel tired, sometimes it makes one feel drowsy, sometimes it makes one hyperactive and their energy level rises.

 coffee makes me tired

When the caffeine content in coffee wears off, adenosine will cause sleepiness and fatigue

Why does coffee make me sleepy instead of awake? Here’s an answer.

Adenosine is a neurotransmitter that is one of the causes of sleepiness and fatigue in the body. 

The brain is developed with adenosine receptors that receive adenosine on behalf of the body. Caffeine, on the other hand, in coffee blocks the adenosine receptors from transmitting the adenosine to the brain to function. 

When the coffee is taken into the body, immediately, the caffeine begins to act and as soon as the caffeine wears off, the adenosine fully swings into action. Even though the caffeine is responsible for causing the adenosine in the body not to have an effect on the brain, it still cannot limit the body from manufacturing these neurotransmitters. This is why when the caffeine wears off, it is as though the body swings into full laziness or tiredness.

There is a certain rush of fatigue that comes after the caffeine wears off. This caffeine content in coffee is responsible for holding up the adenosine receptors in the brain. Furthermore, it is not responsible for determining how much adenosine your body can produce. This surely brings an answer to why does coffee make me sleepy.

A Sugar Crash Can Be Caused By Sweet Coffee

Where there is an intake of sweet coffee then there is bound to be a sugar crash. 

What is a sugar crash? The body processes coffee slower than sugar. After the sugar has been totally processed, then there is less energy in the body. It is advisable to drink coffee teas that have more coffee and fewer sugars. The moment you drink more sugars, one will certainly experience a sugar rush and crash as against the expectations of a caffeine boost. Sugar only gets used up and leaves one sleepy and tired. I found out that this is why coffee makes me tired.

Dehydration Comes With Coffee Intake

One of the many reasons why coffee makes me tired and sleepy is the fact that coffee intake causes dehydration. There is a diuretic attribute of coffee. This means that coffee causes frequent visits to the restroom. Once you take coffee, you get tempted to go and urinate. 

The constant and frequent visits to the restroom can be dehydrating and tiring. As your body loses water, your blood gets thick. This thickness of the blood will cause a slower movement of the blood through the arteries and the veins. 

Consequently, the slow delivery of blood to the arteries and the veins causes the body to have less oxygen. Without the presence of oxygen in the body, one can get sluggish. When your body notices the sluggishness, you will want to consume more coffee and guess what? This continues the whole process all over again.

Drinking coffee means you aren’t drinking water. Water helps to keep our bodies hydrated. A lot of water intake ensures maximum hydration. Instead of drinking too much coffee, you can slow down a little and drink some more water.

Furthermore, coffee is a vasoconstrictor. The problem of dehydration and fatigue is made more intense with this. Your arteries and veins begin to get narrower than it used to be. As this continues to happen, blood flow is impaired. Remember, at this point, the blood is already thick as a result of less water in the body.

coffee makes me sleepy

The Effect Coffee Has On You Can Be Reduced

Actually, you can tamper or cushion the effect of coffee on your body if you really want to. There are some basic things you will likely need to do.

  • Let there be temperance to your coffee intake. Drink responsibly. 2 to 4 cups of coffee in one day is not too bad after all.
  • The sugar content in coffee is as harmful as the word harmful. To avoid the harsh effect of coffee on your body then you have to be deliberate about reducing the intake of sugar into your coffee and into your body.
  • As you take coffee, take double the amount of water. This will only help you remain hydrated as you lose urine. For the adult male, the recommendation of water per day is 15 cups which is about 3.7 liters. On the other hand, for the adult female, the recommendation is 11 cups which is about 2.7 liters.

Note: Some people react differently to coffee. Others react badly while some people may not have too many issues other than the normal downsides of coffee. This certainly may not be your picture but it is also important to stay safe and drink healthy.


I hope with these few points I have been able to throw light on the topic “caffeine makes me tired”. Personally, I feel tired after a cup of coffee. If you’d check well, you might realize that caffeine might also be the cause of your constant fatigue.

Thanks for stopping by. Feel free to comment and share your experiences pertaining to caffeine.

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