Is Excessive Coffee Addiction Really Bad for you?


Coffee is an elite drink that is popularly consumed all over the world. The main ingredient of coffee is caffeine which can bring various health benefits. Drinking too much coffee can cause caffeine addiction with harmful effects on health.

How coffee affects the brain, what are the benefits of drinking coffee, why caffeine is addictive, how much coffee is safe to consume, etc.

Coffee Contains Caffeine

The main reason for coffee’s benefits and addiction is caffeine. Apart from coffee, other foods that contain caffeine are chocolate, tea, soft drinks, etc. But coffee contains the highest amount of caffeine.

One cup (8 oz or 240 ml) of coffee contains 100 mg of caffeine. There are different types of coffee, and depending on the type of coffee, the caffeine content may be slightly higher or lower.

Caffeine levels in the blood peak within 30 minutes to 1 hour of consuming coffee. Caffeine affects the body from 3 to a maximum of 9 hours depending on the individual. (Peter, 2017)

Effects of Caffeine on Your Brain

After drinking coffee, it is absorbed through the intestines and flows into the blood. After reaching the brain, the effect of caffeine begins. Caffeine mainly acts on the central nervous system.

Exertion (especially mental exertion) causes the brain to release a substance called adenosine, which causes the feeling of fatigue and the main instruction to rest.

The caffeine in coffee reduces the activity of adenosine in the brain, preventing feelings of fatigue. At the same time, some other chemicals including dopamine are released which motivates them to work with new energy.

Drinking coffee reduces fatigue, increases focus, increases metabolic rate, increases energy, and improves work performance.

Caffeine is Addictive

Long-term coffee consumption increases adenosine release in the brain. Because the action of adenosine is repeatedly counteracted by caffeine, the brain releases more adenosine to cause the feeling of fatigue.


By counteracting excess adenosine, coffee consumption increases the need for caffeine to relieve fatigue. In this situation, if coffee is not consumed, the effect of excess adenosine causes fatigue and other unusual symptoms called caffeine addiction. For example:

  • Headache
  • Shimmy
  • Irritable mood
  • Inability to concentrate on work
  • Reluctance to do any work

If coffee is consumed between work, attention to work increases. The urge to speed up work can also lead to coffee addiction.

A small amount of coffee in the beginning can relieve fatigue, but the amount of coffee consumed increases over time. This is due to a gradual loss of sensitivity to coffee or caffeine.

When does Caffeine Become Addictive?

There is no definitive information on exactly how much and for how long drinking coffee can lead to caffeine addiction.

If regular coffee drinkers experience unusual symptoms (headache, jitteriness, irritability, lack of concentration, etc.) after suddenly stopping coffee consumption (after 12 to 24 hours), then it should be understood that caffeine addiction has occurred.

The symptoms of caffeine addiction tend to be more severe at first when coffee is stopped. But it decreases with time.

Ways to Avoid Caffeine Addiction

The methods mentioned below can be followed to get rid of caffeine addiction. (Brusie, 2017)

  • Water bottles and nice glasses should be placed on the work table so that water can be drunk whenever desired.
  • A short walk or rest can be taken between work to relieve fatigue.
  • Green tea can be consumed instead of coffee. Green tea is rich in antioxidants and contains very little caffeine.
  • Eating healthy snacks (nuts, sunflower seeds, and fruits) helps to overcome coffee addiction.
  • Regular exercise should be done so as not to cause fatigue easily.
  • Health Benefits of Coffee

The health benefits of drinking coffee in moderation are:

  • Improves brain performance by eliminating fatigue.
  • Reduces the risk of brain diseases (Alzheimer’s and Parkinson’s disease).
  • It plays a helpful role in controlling body weight by increasing the metabolic rate.
  • Reduces the risk of heart disease, diabetes, cancer, etc.
  • Boosts the body’s energy means energy for work increases.
  • Maintains good liver function and reduces the risk of liver disease.
  • Reduces anxiety and depression and maintains good mental health (mind).

Coffee should be limited

Coffee should be consumed in moderation to prevent caffeine addiction and avoid the negative effects of coffee. Caffeine dosages of 200 mg daily are completely safe. There are roughly 100 mg of caffeine in one cup (240 ml) of coffee. You may therefore have up to two cups of coffee each day.

A maximum of 400 mg of caffeine per day (4 to a maximum of 5 cups of coffee) can be consumed.
Who can not eat coffee?

For hypertensive patients who are not in the habit of drinking coffee, coffee consumption may increase blood pressure. However, if you have the habit of drinking coffee regularly, blood pressure does not increase in your case.

Coffee should not be consumed by those who do not sleep easily at night (insomnia patients). If you want to eat alone, you have to eat during the day. But don’t eat too much.

Final Words

Caffeine addiction is not a serious problem. Rather, moderate consumption of coffee is beneficial for health. However, excess coffee cannot be consumed. Adherence to the methods mentioned in the paragraph to overcome caffeine addiction can be expected to yield benefits.

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