Coffee doesn’t affect me! Why?

In this brief text we will provide you with the answer to the question: “Coffee doesn’t affect me! Why?”. In addition, we will discuss how to stay energized without drinking coffee, the best coffee substitutes and we will also discuss the benefits of drinking coffee daily.

Coffee doesn’t affect me! Why?

People who say they don’t feel the effect of caffeine probably don’t have adenosine receptors with a lot of affinity for this substance.

Analyzing only the most studied substance in the drink, caffeine, we can say that our tolerance to the substance is affected by several factors, including everything from what we eat to our genetics.

Just imagine that when you drink coffee, caffeine enters your bloodstream through your stomach and intestines, and as it circulates in your body, it attaches to various “receptors” present in your brain.

One of these receptors is that of the neurotransmitter adenosine, a chemical substance produced by neurons with the function of inducing sleep and relaxation. And, when caffeine binds to adenosine receptors, it blocks the action of this neurotransmitter and so we are more willing and alert.

But each person’s adenosine receptors are slightly different, and caffeine may not bind to them very well.

How can I stay energized without caffeine?

If you are tired and want to stay energized without drinking coffee, you can try exercising, eating a banana, drinking water, tea, or taking a cold shower.

Eat a banana

Fruit is one of the best foods to give that energy boost. That’s because it is rich in carbohydrates, potassium and vitamin B6, all substances that help in the mission. No wonder, it is one of the favorite foods of athletes before and after high resistance events.

Drink water

It sounds silly, but a lot of people forget to drink water often and end up dehydrated. The best way to know if you are well hydrated is not to feel thirsty (of course) and to have colorless, at most light yellow urine.

Do exercises

Physical activity is the best way to gain energy immediately and naturally, because it stimulates the circulation of oxygen through the blood, in addition to the production of various substances that generate a feeling of well-being. 

You don’t have to go to the gym for that: if you need a boost of energy right away, try walking around or in circles for about ten minutes.

Take a cold shower

Or splash cold water on your face. The old tactic is infallible, as it has a scientific explanation: the shock with ice water causes the release of noradrenaline, the neurotransmitter responsible for our “fight or flight” response, which increases heart rate, accelerates breathing and makes the body more alert.

What are the best coffee substitutes?

The best coffee substitutes are green teas, whole grains, wheatgrass juice, traditional yeast and cocoa. Even if it seems irreplaceable, it is possible to reduce its consumption – or even eliminate it completely from the menu – and still remain focused and willing all day. 

Caffeine increases the production of adrenaline in our body and gives us energy. We thus gain a feeling of pleasure and more ability to concentrate. That’s why caffeine is addictive. It’s an injection of energy, but watch out because that feeling doesn’t last long. 

Its effect is short-term and that means that when we finish the first coffee, we are already thinking about the next one. In addition, excessive consumption of caffeine can bring us many health problems such as decalcification of bones, it can alter our nervous system, increase ulcers or accelerate our heart rate.

What are the benefits of ingesting caffeine daily?

Moderate coffee consumption can have numerous health benefits such as reducing the risk of chronic diseases, including type 2 diabetes, cardiovascular disease and certain types of cancer.

In general, the recommended daily dose of caffeine for the drink to have positive effects on the body is up to 400 milligrams, about five small cups.

Coffee can help with weight loss

Some components of coffee, mainly caffeine, theobromine, chlorogenic acid and theophylline activate the autonomic nervous system, which causes an increase in adrenaline production by the adrenal glands. 

Adrenaline, in turn, increases the breakdown of fat cells and releases free fatty acids, which is stored fat. The body then uses these free fatty acids as a source of energy.

Stress relief

Chronic stress increases cortisol production and alters circuitry in a region of the brain called the hippocampus. With this, there is a worsening in mood and memory and an increased susceptibility to depression. 

Compounds present in coffee, such as caffeine and chlorogenic acid, improve mood and contribute to a decrease in the level of stress, in addition to bringing benefits to memory and reasoning.

Helps digestion

Substances present in coffee, such as polyphenols and caffeine, increase the movement of the digestive tract, the gastrointestinal system. This mechanism facilitates digestion. 

Coffee consumption also increases the production of a hormone called gastrin, which activates the colon, part of the large intestine, four minutes after consumption, which improves bowel function in some people.


In this brief text we provided you with the answer to the question: “Coffee doesn’t affect me! Why?”. In addition, we discussed how to stay energized without drinking coffee, the best coffee substitutes and also discussed the benefits of drinking coffee daily.


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.