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why coffee makes you sleepy?

Written by Online Starts

Coffee, a powerful stimulant
There is no doubt that coffee is a very good pick-me-up. Numerous studies have proven that coffee has a stimulating action and that it increases alertness, concentration and can even help to fight against drowsiness and sleepiness. This goes further, other studies have focused on the effect of coffee on memory. Thus, a moderate concentration of coffee could improve certain cognitive functions such as memory. The U.S. Army had implemented this theory by providing troops in Iraq with chewing gums that delivered a dose of 200 mg of caffeine. The soldiers had to chew every two hours from 3 to 7 am.

coffee

coffee

The coffee myth
We have always been told that coffee is a good way to wake up and stimulate the mind. It is the first reflex we have when we feel a little tired during the day. Except that as the day goes by, fatigue intensifies and despite the numerous coffee breaks with colleagues, concentration is hard to maintain. So if a cup of coffee can be beneficial for a while, would multiplying them be counterproductive?

Why am I tired after a coffee?
First of all, it is important to know that not everyone reacts the same way to caffeine. Some people are very sensitive to it and will jump up and down after a cup, while for others, the effects will be felt very little. On the other hand, some people may feel particularly tired after a cup of coffee, while others will not feel any effect. So is it really the coffee that makes you tired or is it the way your body reacts?

caffeine affects the nervous system
Coffee is known to block adenosine, a chemical present in the central nervous system. It regulates the sleep-wake cycle of the brain. This is why when you are awake during the day the level of adenosine increases and this is what, in the long run, makes you sleepy. Once asleep, the level of adenosine decreases. However, when caffeine is ingested, it binds to the receptors instead of adenosine, which activates the neurons. The brain then releases hormones to produce energy. In general, the heart rate increases, and the energy boost is soon felt.

Coffee dehydrates
We don’t think much of it, but caffeine dehydrates and dehydration causes fatigue. This is why if you drink a lot of coffee you will accumulate fatigue because your brain will not be able to release the neurotransmitters that make you alert. In addition, when you are dehydrated, your blood becomes thicker which can reduce the blood flow to the brain. Caffeine is then counterproductive since the opposite effect ends up happening.

Sugar in coffee, a treacherous effect
If you add any amount of sugar to your coffee, you may have already experienced a blood sugar spike. Sugar can be hidden in whipped cream or syrup, for example. The only problem is that sugar is absorbed by the body more quickly than coffee. Once the sugar is used up, you will feel a sharp drop in energy. So try to choose plain coffee if you are sensitive to drowsiness after coffee.

How to minimize the effects of coffee?
If you don’t want to give up coffee, you should know that there are nevertheless little tricks to minimize its harmful effects. The first is to reduce your consumption. Try to respect the maximum daily consumption recommendations. Moderate consumption is around 400 milligrams of caffeine per day or about two to four cups of coffee.

Caffeine is not only present in coffee
Also, avoid caffeinated drinks with syrups and sweetened creams. If you often have a drop in energy in the afternoon, try drinking decaffeinated drinks after lunch instead. Finally, be aware that coffee is not the only source of caffeine; soft drinks, energy drinks, and even some painkillers contain caffeine.

What if coffee really does make you sleep? This is one of the effects it can have if consumed in excessive quantities. Explanations.

You drank 4 coffees and more today and yet you are still tired? What if the coffee was actually a false friend? We tell you everything.

We have always been told that coffee allows us to wake up and stimulate the mind. It is the first reflex we have when we feel a little tired during the day. Except that as the day goes by, fatigue intensifies and despite the numerous coffee breaks with colleagues, concentration is hard to maintain. So if a cup of coffee can be beneficial for a while, would multiplying them be counterproductive?

Coffee, a powerful stimulant

There is no doubt that coffee is a very good pick-me-up. Numerous studies have proven that coffee has a stimulating effect and that it increases alertness, concentration and can even help to fight against sleepiness and sleepiness. This goes further, other studies have focused on the effect of coffee on memory. Thus, a moderate concentration of coffee could improve certain cognitive functions such as memory. The U.S. Army had implemented this theory by providing troops in Iraq with chewing gums that delivered a dose of 200 mg of caffeine. The soldiers had to chew every two hours from 3 to 7 am.

Why am I tired after a coffee?
First of all, it is important to know that not everyone reacts the same way to caffeine. Some people are very sensitive to it and will jump up and down after a cup, while for others, the effects will be felt very little. On the other hand, some people may feel particularly tired after a cup of coffee, while others will not feel any effect. So is it really the coffee that makes you tired or is it the way your body reacts?

Coffee is known to block adenosine, a chemical found in the central nervous system. It regulates the brain’s sleep-wake cycle. This is why when you are awake during the day the level of adenosine increases and this is what, in the long run, makes you sleepy. Once asleep, the level of adenosine decreases. However, when caffeine is ingested, it binds to the receptors instead of adenosine, which activates the neurons. The brain then releases hormones to produce energy. In general, the heart rate increases, and the energy boost is soon felt.

Coffee dehydrates

We don’t think much of it, but caffeine dehydrates and dehydration causes fatigue. That’s why if you drink a lot of coffee you will accumulate fatigue because your brain will not be able to release the neurotransmitters that make you alert. In addition, when you are dehydrated, your blood becomes thicker which can reduce the blood flow to the brain. Caffeine is then counterproductive since the opposite effect ends up happening.

Sugar in coffee, a treacherous effect

If you add any amount of sugar to your coffee, you may have already experienced a blood sugar spike. Sugar can be hidden in whipped cream or syrup, for example. The only problem is that sugar is absorbed by the body more quickly than coffee. Once the sugar is used up, you will feel a sharp drop in energy. So try to choose plain coffee if you are sensitive to drowsiness after coffee.

How to minimize the effects of coffee?
If you don’t want to give up coffee, you should know that there are nevertheless little tricks to minimize its harmful effects. The first is to reduce your consumption. Try to respect the maximum daily consumption recommendations. Moderate consumption is around 400 milligrams of caffeine per day or about two to four cups of coffee. Also, avoid caffeinated drinks with syrups and sweetened creams. If you often have low energy in the afternoon, try drinking decaffeinated drinks after lunch instead. Finally, you should know that coffee is not the only source of caffeine; soft drinks, energy drinks, and even some painkillers contain it.

 

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Online Starts

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