Coffee is a popular beverage in many countries. When it comes to the use of coffee, people often think that it is anti-drowsy, helps to stimulate the spirit, etc. However, in fact, coffee also brings many other effects to the body, especially the brain.
Coffee is not only a stimulant drink, but it has different effects on different people, depending on the absorption capacity of each person, even those effects are different over time. But if we know how to use coffee properly, it is very beneficial for health. I would like to share the article “How does coffee affect the brain?”. So that readers can understand more about the effects of caffeine in coffee.
1. What Happens When You Drink Coffee Every Day?
When a person starts drinking coffee, the body and brain will form a mechanism to absorb caffeine for about 7-12 days. The way caffeine is received is also not well explained, but the brain will try to bring the body back to normal. However, regular caffeine intake also reduces the number of receptors for norepinephrine, which is related to adrenaline, a substance that increases feelings of euphoria.
The addiction to drinking coffee is a very understandable thing, you will have a craving for coffee again after 12-24 hours because your brain is used to caffeine. Now without caffeine, the brain will have to work in a completely different environment leading to headaches. More serious are weakness, fatigue, lethargy, irritability, nausea and muscle aches. Usually you get over it after 10 days without caffeine.
Drinking coffee will get you excited and speed up work rather than increase work efficiency, because caffeine stimulates the speed rather stimulate your skills.
According to a new study from Harvard University, USA, if you drink 1-3 cups of coffee a day can help reduce the risk of stroke due to heart disease, death from diabetes, neurological, prevent cancer…
Scientists have found that coffee contains two oils, cafestol and kahweol, that have a beneficial effect on liver enzymes, help improve cirrhosis, protect the liver and prevent liver cancer.
2. Effects of Coffee on the Brain
According to many studies, coffee contains a large amount of antioxidants and hundreds of different biological compounds, bringing many benefits to the internal organs of the body.
Among the important active ingredients of coffee, it is impossible not to mention caffeine, chlorogenic acid, trigonelline, cafestol and kahweol. These five active ingredients not only help stimulate the central nervous system, metabolize blood sugar, regulate blood pressure, are good for the liver, inhibit the growth of bacteria in the mouth, but also bring a lot of benefits to the brain.
2.1. Coffee Keeps You Awake
There have been many studies on the effect “awake” of caffeine. These studies all focused on the substance Adenosine produced by the brain when we are not sleeping or when working. The more the body works, the more adenosine it produces.
The caffeine in coffee is structurally similar to Adenosine. They displace Adenosine at nerve receptors. And stimulates the nervous system (Makes adenosine unable to meet receptors). The nervous system is more active and one of the consequences is that we see more awake and alert. So drivers who drive long distances, people who do a lot of mental work…all drink coffee to become lucid.
2.2. Drinking Coffee regularly Boosts Brain Function
According to many studies, the caffeine in coffee has the effect of enhancing brain function in a short period of time. In addition, caffeine also stimulates the central nervous system by promoting the release of other neurotransmitters such as noradrenaline, dopamine, serotonin. This leads to improved mood regulation and reaction speed as well as increased concentration and other mental functions of the body.
The research team of Professor Andrew Scholey, Center for Cognitive Research and Neuroscience at the University of Northrumbia (UK), confirms that coffee is very good for the brain. Caffeinated coffee beans account for 1-2%, have a stimulating effect on the nerves, increase the working power of the mind.
2.3. Drinking Coffee can Help Improve Memory
Some studies have found that caffeine, in addition to improving mood, increasing brain reaction speed and concentration, has the ability to enhance short-term memory. The effect of coffee on long-term memory is still controversial.
Through research, British scientists believe that it is the caffeine in coffee that has the ability to change the electronic activity of brain cells. This discovery has just been published by scientists from the University of Birmingham (UK).
Normally, the activity of neurons plays a key role in the process of receiving information, but this process is involved in a brain chemical, adenosine, which is especially high in the elderly.
When adenosine binds to a molecule receptor on brain cells, called A1, it reduces the activity of neurons, affecting memory. But caffeine can block the binding on adenosine, thereby limiting its effects and enhancing memory.
With this finding, the team confirmed that drinking coffee regularly can increase memory capacity by three times, because caffeine is concentrated in the brain.
2.4. Coffee can Help Reduce the Body’s Feeling of Fatigue
One of the reasons many people like and often drink coffee is because when they drink it, they feel happier and more energetic. So it’s not surprising that many studies show that coffee has the effect of reducing feelings of fatigue.
However, this effect only lasts for a while and you should also note that you should not drink coffee in the evening because it can affect the quality of sleep, making you feel more tired. If stretching can impair the function of the brain overall, so you need to pay attention.
The active ingredient in coffee is caffeine – a substance that acts on the central nervous system, causing euphoria. This must be noticed by everyone after 10-15 minutes of drinking some coffee. That refreshment affects the psyche, making you happier.
And interestingly, some studies have found a link between caffeine consumption and a reduced risk of depression and suicide — especially when consumed in the form of coffee. However, at least one of these studies found this association only with caffeine coffee and not tea, although coffee had the same effect as tea.
2.5. However, Caffeine also Increases the Level of Adrenaline, Which can Cause Unpleasant Mood
Caffeine stimulates our brain cells, which means the hormone control center that tells the pituitary gland in case of an emergency, to produce the hormone adrenaline.
Normally, adrenaline is released in a state of excitement such as threat or trouble, when we tend to become more irritable, anxious and emotional. While it can be helpful in times of need or self-protection, the “irritable” hormone is not so good in situations like negotiating in a meeting or answering an interview, etc.
2.6. Caffeine can Increase Concentration
One of the most common reasons people drink caffeinated coffee or tea is to help them stay focused at work, it’s not surprising that one of the most obvious mental effects of caffeine is its enhanced ability to work. focus, especially for those who are tired.
Research shows that drivers who drive long distances are less drowsy and tired if they drink coffee, tea, drugs or energy drinks that contain caffeine.
However, most people are nervous and know that it will be difficult to concentrate if used too much.
2.7. Regular Coffee Consumption may Reduce the Risk of Alzheimer’s Disease and Dementia
Alzheimer’s disease is one of the leading causes of dementia in older adults, which usually starts slowly but progresses in severity over time. Currently, there is no cure for this disease. But the good news is that regularly drinking coffee can reduce the risk of Alzheimer’s disease and memory-related problems by about 65%.
2.8. Coffee Helps Prevent Parkinson’s Disease
Parkinson’s disease is a high-grade disorder of the nervous system that affects movement, where certain nerve cells (neurons) in your brain die, reducing the production of a chemical in your brain called dopamine. Decreased dopamine levels affect movement, balance, and muscle control.
Studies show that coffee can help prevent this disease. In those who drank 2 cups of coffee a day there was a 29% lower risk of Parkinson’s disease. Caffeine in coffee seems to be the active ingredient for the protective effect of this, however, the mechanism of action has not been clarified.
3. When Should You Drink Coffee?
You should drink coffee between 10-11:30 a.m. The reason is that during this time, the stress hormone levels are low, so drinking coffee is very safe, and it also helps the body to be more alert and work much more efficiently.
One of the good times for using coffee is the time after 1pm, cortisol levels in the body begin to decrease, leading to feeling sleepy, lethargic, and sleepy. Therefore, if you use a cup of coffee now, it will help your spirit, help you be more alert, focus on work, and your body will be more flexible and agile. But you should not drink too late, especially after 3 p.m because it will cause insomnia at night.
4. Notes When Drinking Coffee
Caffeine’s effects on the body are related to genes. People who are genetically slow metabolizers of caffeine have an increased risk of heart attack, high blood pressure, and pre-diabetes following increased consumption of caffeinated coffee, while fast metabolizers do not experience these risks.
For those who are slow metabolism, the study also showed that caffeine inhibits sports activities.
According to nutritionists, people recommend that coffee is good but should not drink too much, should only drink 1-2 cups / day. You should also only drink at the times mentioned above. Do not drink coffee in the evening or when you are hungry, it is not good for health.
In addition, the fact that you drink too much will face many risks such as stomach pain, heart palpitations, trouble sleeping, headaches, hangovers, poisoning, fainting … extremely harmful to health.
Thus, when drinking coffee in moderation will be good for the brain. However, drinking too much coffee can lead to heart palpitations and sleep problems.
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