effects, benefits, contraindications of consumption

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Effects of caffeine on the body

Caffeine is a stimulant and exciting. It alters the state of the nervous system and the brain, and therefore prevents drowsiness in people who consume it.

In fact, your usual consumption is to be "awake." Therefore, people who get up and cannot do anything until they have coffee, or people who consume it at late hours of the day to maintain a state of alert either to study or work. Chemically, caffeine blocks the adenosine that regulates the state of sleep and wakefulness.

What are the benefits of caffeine?

The benefits of caffeine are that by altering the nervous system and stimulating the waking state, one can stay longer concentrated or awake.

Contraindications of caffeine

The contraindications of caffeine are diverse. Its consumption, especially in excess can drastically alter the heart rate. It is important to control the levels consumed, since otherwise it could lead to an arrhythmia.

In turn, as the heart rate increases, blood pressure rises. Therefore, for people who have a natural tendency to increase blood pressure, coffee or products containing caffeine are not recommended.

By inhibiting the adenosine that regulates the state of sleep, it is likely that the consumption of coffee or caffeine in general alters sleep and causes insomnia. In people it happens easily, but usually this happens when consumed in large quantities and late in the afternoon, when the time to go to sleep is approaching.

caffeine benefits

Another of the great associated to the excess of coffee consumption is the change of mood. For example, people who consume large amounts of caffeine may have irritability, nervousness and restlessness.

Coffee consumption inhibits iron absorption. Therefore, it is not recommended for people with anemia or tendency to this disease.

In addition, one of the most common side effects of excessive coffee consumption is diarrhea.

How much caffeine does a coffee have?

A coffee contains approximately 40 mg of caffeine. This may vary depending on how it is prepared, both the type of machine or grinding, and the proportion of water / coffee used.

How much caffeine a day can I consume?

According to the EFSA agency is European food health, the amounts that could be considered non-harmful are around 75 to 300 mg per adult. This must also be taken into account that there are people with more tolerance than others, as is usually the case with stimulants.

Therefore, what for one person is normal or low consumption, for the other will cause it to be climbing the walls.

caffeine effects

Caffeine and analgesics

Caffeine has analgesic and vasodilator effects. That is why some pain relievers already contain caffeine. For example, Cafiaspirin, a Bayer aspirin with caffeine included, is used for headache, menstrual cycle pain, muscle aches and discomfort associated with febrile state.

Foods and plants with caffeine

Usually foods that contain caffeine have been enriched with it, although a few contain it naturally.

Caffeinated foods are listed from different variants of coffees (cappuccino, Irish, etc.) to soft drinks, energy drinks and beers that contain caffeine.

For example, dark chocolate contains 43 grams of caffeine per 100 grams.

Therefore, taking a small tablet of coffee could be equivalent to having a cup of coffee.

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