What are the Effects of Caffeine On Human Body?


Caffeine can make you very energetic and active. But this effect may not last very long if you keep overdosing your daily caffeine intake. Let’s see what are the effects of Caffeine on Human body, even they are good or bad.

You know that everything has some good and some bad effects. And you might also have heard the quote: “Excess of everything is bad”. So, without any further delay lets see what effects caffeine can have on our body, good or bad.

What is Caffeine?

According to Wikipedia, Caffeine is a central nervous system stimulant of the methylxanthine class.

It is a chemical found in tea, coffee, carbonated drinks, and some energy drinks.

What Amount of Caffeine is Too Much?

On average Americans drink up to 3 cups of coffee per day. Which contains 100mg of caffeine.

There exists a LETHAL dose of caffeine, which is 10g. But an average cup of coffee contains only 100mg to 200mg of caffeine. It means you need to consume at least 50 to 100 cups of coffee a day to reach the max limit of caffeine which will be lethal for you.

So, it is almost impossible to overdose caffeine to a lethal level with a normal routine.

But, there is an overdose that can make you feel no good and can affect our body in negative ways. FDA only recommends 4 to 5 cups of coffee, for a healthy adult, in a day.

Also read: Breast Cancer 101: Symptoms, Types, and Causes of Breast Cancer

Effects of Caffeine on Human Body

I hope you now you are very clear about the dosage of caffeine. Now I am going to discuss some positive and negative effects which caffeine can have on our body.

Keeps Focused and Energetic

When you drink a cup of coffee, the caffeine present in it the adrenal glands and they release adrenaline hormone to our system. Which tells our brain to stay energetic and focused.

More Leads to Less Focus

But when we consume it too much it makes you less focused and sluggish at bedtimes. Studies tell.

Enhances Memory

Some researches show that an amount of caffeine enhances memory. But most researches have shown the mixed results, some say it does not affect our memory.

In research by John Hopkins University, they have found that the intake of caffeine enhances long-term memory after a learning session.

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It stimulates our central nervous system, after intaking of caffeine you feel more alert, less tired and more active. You can also focus well as I have stated in the first point. It is a common ingredient to treat drowsiness and headaches.

Speeds Up Metabolism, Enhances Weight Loss

Caffeine can promote weight loss in both men and women by increasing body metabolism.

Caffeine suppresses the appetite and reduces the desire to eat more. And it also promotes the thermogenesis, which means it makes our body to generate more heat and energy from digested food.

Taking a cup of black coffee before a workout or weight loss exercises can make your weight loss journey faster.

Lessens the Risk of Alzheimer’s and Dementia

According to Healthline, people who drink coffee regularly tend to possess less risk of developing Alzheimer’s and Dementia.

More Leads to Day Fatigues

When you consume more coffee, and most usually consume it at nights before bedtimes. Then it can develop fatigues in your coming routine.

This happens because when you take excess caffeine or near to bedtimes, then it becomes hard to sleep at night and deep sleep. So the next day when you wake up you feel tired because you didn’t manage to get enough deep sleep. And on the next day, you again take caffeine to make your day active and energetic.

Prevents Cancer

Some resources and studies clearly suggested that people who drink coffee or take caffeine have a lower risk of developing different types of cancers, like skin cancer, oral cancer, prostate cancer, and Breast cancer.