Coffee can be said to be a must-have drink for many people to refresh their minds. For today's working people, the life of the workday is given by coffee.
However, there are also a lot of questions about coffee.
Why do I get sleepy when I drink coffee?
Can you drink coffee during menstruation?
I have heart palpitations after drinking coffee, can't I drink it?
Is instant coffee healthy?
What to do about coffee addiction?
This time, I will give you a one-time package solution.
Big difference in coffee pick-me-up?
It's all the genes that are to blame
Caffeine has a central nervous system stimulant effect, but this effect varies greatly from person to person.
There are genes in the human body such as CYP1A2, PDSS2, etc., which encode enzymes that affect the metabolism of caffeine.
People who are more active in these enzymes metabolize caffeine faster, and the caffeine ingested will be quickly eliminated from the body, so it is still sleepy to drink coffee.
However, some people's coffee metabolism genes are relatively weak, and a little caffeine has to be metabolized for a long time. Even the coffee I drink in the morning is still in my brain at night.
In addition, some receptors for caffeine action (such as adora2) in different people's brains also have some subtle differences due to the diversity of gene sequences, which can also affect the effect of caffeine.
But it's also possible that the timing of the drink is not quite right. Drinking coffee before you get sleepy is the most effective way to refresh yourself.
Coffee may make the heart beat faster, which is normal
After drinking coffee, some people will experience discomfort such as rapid heartbeat, nausea, and dizziness, commonly known as caffeine intolerance.
In fact, this is normal, and it is also related to an individual's sensitivity to caffeine. This group of people may be more sensitive to caffeine, and caffeine metabolism is slower.
But that doesn't mean you can't drink coffee, but you need to adjust the frequency and amount of coffee you drink according to your situation.
For example, if you drink 2 cups a day, you might as well reduce it to 1 cup a day to let your body run in with caffeine.
Drinking coffee does not cause heart disease
Some people experience heart palpitations after drinking coffee, fearing that drinking coffee will cause heart disease.
Authoritative institutions such as the American Heart Association and the European Society of Cardiology have studied and believedModerate consumption of coffee (about 1 2 cups per day) does not increase the risk of heart disease and cardiovascular disease.
Moreover, patients with cardiovascular and cerebrovascular diseases can also drink coffee.
Studies have shown that for those who have already suffered from coronary heart disease, or even had a myocardial infarction, drinking coffee will not affect their heart function, will not aggravate symptoms, and will even have a protective effect.
If you drink coffee, you may run to the toilet frequently
Many people have experienced frequent urination after drinking coffee.
In fact, caffeine is a natural diuretic. If you want to refresh yourself by drinking coffee before the exam, remember to drink less water......
There are also some people who want to poop after a while after drinking coffee, and even have diarrhea.
Indeed, there was a small sample study that said that about 29% of people who drank coffee had a laxative effect. But it's not clear whether this is the effect of caffeine. Because there are also studies that have found that decaffeinated coffee has a similar effect.
If you start having every time you drink coffee