Coffee is the most loved drink by Italians (and not only). Unmissable in the morning to wake up quickly and at the end of meals to start again after the lunch break. From a healthy point of view, science is divided into two: those who consider it almost a panacea for all ills and those who warn us against its consumption due to probable adverse effects. Which of the two groups is right is not for us to say, however, we can tell you at least ten things about coffee and caffeine that you have probably never heard of. The site Eat this, not that! even reports 35, but we list the most curious. Better not to take it in the morning
It is a fairly common habit to have a nice cup of coffee upon waking up. However, as our body is structured, it should never be done. In fact, in the early hours of the morning, cortisol levels reach their maximum – more precisely within 25 minutes of waking up. But caffeine, together with this substance, increases the tolerance threshold for coffee, effectively canceling the tonic effect. In the afternoon, however, cortisol tends to decrease and therefore you can rely on a good coffee. After only 10 minutes the effect of the caffeine is felt
After sipping an excellent coffee, we only have to wait a few minutes to see the real effect of caffeine on our body. The maximum peak, however, occurs within 45 minutes and tends to disappear completely after 3-5 hours depending on our metabolism. If the coffee is dark it has less caffeine
When buying coffee, especially coffee beans, check if the product is more or less dark. The roasting process, in fact, increases the formation of some substances and decreases others. To understand the level of roasting, experts check the color – as well as the weight loss. In our country, more roasted and therefore darker beans are found more frequently, while in Anglo-Saxon countries it is more likely to find light ones. However, the color could make the difference: if you want a greater amount of caffeine you have to choose the lighter variety, if you want less it is better to rely on darker beans. Decaffeinated contains caffeine
This statement makes you smile a little, but that’s it: even decaffeinated coffee contains a little caffeine. This was suggested by a study published in the Journal of Analytical Toxicology that analyzed most of the decaffeinated coffee brands on the market. From the results it emerged that caffeine was present in everyone, without any exception, even if in small quantities. Powdered caffeine can cause death
The pure caffeine powder, which is easily available in grocery stores or on the web, could also cause death from an overdose. And what the Federal and Drug Administration recently suggested, which reminds us that a single teaspoon of powder is equivalent to almost 30 cups of coffee. So 100 grams of product are about 400 cups of coffee or the equivalent of 3,000 cans of Coca Cola.
Coffee is good or bad Coffee does not allow you to relax …
Caffeine has a very similar structure to adenosine. The latter is an essential molecule that acts as a neurotransmitter. Its main feature is to signal to our brain when oxidative stress levels have reached a certain threshold. If this happens, our brain shuts down and relaxes the nervous system. On the contrary, caffeine acts on this mechanism by blocking the inputs of adenosine and causing a stimulating action of the central nervous system. It should be emphasized that continuous consumption causes an increase in adenosine receptors. Therefore, to obtain the same effects, over time it is necessary to increase the doses. In two words: coffee causes a real addiction. … But it improves your mood
Precisely because it is able to block the action of adenosine, caffeine improves our mood. And it does so by stimulating the release of dopamine, a substance that helps us to have a greater feeling of well-being. Coffee Can Increase Your Weight
Consumption of coffee causes an increase in cortisol levels in our body. This results in weight gain. This is because this substance – also known as stress hormone – is a real hunger signal and increases the desire to eat foods rich in calories. Risks of withdrawal from coffee

Quitting coffee overnight is not child’s play. Far from it. Causing a real addiction, once you stop taking it there is a condition known by the term caffeinism. Like other drugs, the subject experiences a whole series of adverse symptoms: headache, vomiting, tremor, sweating and itching. Fights pain
According to some studies, coffee could help fight pain. It is no coincidence that some pain relievers contain small doses of caffeine. This characteristic is another consequence of the adenosine block which reduces the release of pain mediators induced by adenosine at the level of the nerve endings. It also activates the noradrenalinergic pathways which have a suppressive action on pain.
Fonte:
35 Things You Didn’t Know About Caffeine – Eat this, not that

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