How to deal with caffeine: super advantages and super disadvantages


Caffeine, familiarly known as coffee, is a natural ingredient loved around the world, but its effects vary widely depending on the amount consumed and the individual.
This article explores how to balance the benefits and risks of caffeine and consume it wisely.

What is Caffeine?

Caffeine is a plant-derived stimulant widely found in nature, including coffee beans, tea leaves, and cocoa beans.
This natural ingredient acts on the central nervous system to promote alertness and improve concentration and memory.
It is also known to reduce fatigue and support improved athletic performance.

However, depending on the amount consumed and the individual’s constitution, caffeine can cause insomnia and anxiety, so it is important to understand and properly manage caffeine intake.

Individual Differences in Caffeine

Each individual responds to caffeine differently.
Genetic differences cause the body to break down caffeine at different rates in different people, so the same amount of caffeine can work very differently for each person.
In addition, weight, age, current health status, and sensitivity to caffeine can also affect the effects of caffeine.
For example, people with certain health problems, such as high blood pressure or heart arrhythmias, should be especially careful when consuming caffeine.

Having a clear understanding of “how you react to caffeine” is very important in order to deal with caffeine well.

Taste and Caffeine

Preferences for caffeine-containing beverages are deeply rooted in the rhythms of daily life and culture, not just in the desire for stimulant effects.
Coffee, black tea, and green tea continue to be loved around the world for their unique flavors, the environments in which they are consumed, and the cultures that surround them.

Coffee Taste

Coffee is known for its rich aroma, deep flavor, and awakening effect.
Different roasting methods and brewing methods are used in different parts of the world, and coffee cultures have developed to suit each country and region.
Some people start their day with a cup in the morning, while others choose coffee as a tool to enjoy conversation with friends.
In addition, coffee shops often serve as a place for social interaction.


person holding white ceramic cup with liquid

How to enjoy black tea

Tea is loved by people all over the world for its soft aroma and flavor.
One of the characteristics of tea is that it has a cultural element to be enjoyed at certain times of the day, such as afternoon tea in the UK.
For tea lovers, the calming effect this cup of tea brings is a momentary blissful respite from the daily grind.

white ceramic teacup with tea

Green tea and its benefits

Green tea is known not only for its caffeine, but also for its many health benefits.
Especially in Japan and China, green tea has a long history of being a healthy beverage.
Drinking green tea is considered to be part of a daily health-conscious lifestyle.

white ceramic teacup on brown wooden table

Beverages with high caffeine content and adjusting caffeine intake

Caffeine content varies by beverage, with a recommended daily intake of 400 mg or less for the average adult.
Consider the use of decaffeinated products and timing of intake to ensure proper caffeine intake.

DrinksCaffeine content(mg)
energy drink32 - 300
espresso coffee210
wellingtons tea160
black tea30
roasted green tea20
green tea20
oolong tea20
roasted rice tea10

Advantages and Disadvantages of Caffeine


Stimulant effects

Caffeine stimulates the brain, dispelling drowsiness and improving concentration. This improves study and work efficiency.
Caffeine is often consumed especially in the morning or before studying or working. However, for some people, it is recommended to consume caffeine in the morning if possible, as consumption in the evening or later can have a negative effect, such as making it difficult to sleep.

Fatigue Relieving Effects

Caffeine helps break down lactic acid, reduces muscle fatigue caused by exercise, and promotes recovery of physical strength.
It also improves performance during exercise and is effective for recovery after exercise.

Fat Burning Effect

Caffeine activates metabolism and promotes the burning of body fat.
It allows the body to use fat more efficiently, which helps improve exercise efficiency and weight loss.

Mood Improvement

Caffeine stimulates the release of dopamine, which lightens mood. This helps reduce stress and feelings of well-being.



Caffeine overdose can overstimulate the nervous system, causing an increase in heart rate and blood pressure.
This can cause anxiety and agitation in some people.


Caffeine’s arousing effects can negatively affect sleep at night.
Caffeine intake later in the evening should be avoided, especially for those who have a slow metabolism of caffeine. It can cause serious sleep disturbances.


Rapid intake or withdrawal of caffeine can cause headaches in some individuals.

Gastrointestinal Disturbances

Caffeine intake on an empty stomach can cause gastrointestinal distress. Particular attention should be paid to those with excessive stomach acidity.

Caffeine intake should be properly managed according to your personal constitution and circumstances in order to enjoy its benefits and avoid its disadvantages.
The optimal caffeine intake for you is important.


Caffeine offers many benefits when properly managed, but it is important to determine the appropriate amount of caffeine intake for your personal constitution and lifestyle.
Follow the latest research on caffeine intake and explore options for a caffeine-free lifestyle to live a healthy life.

Have a Good Life!