Find out the answer to how much coffee a day is and the best time to drink

Do not know yourself ever, drinking coffee has become a "ritual" began the new day many people around the world. And many Vietnamese also have that habit.

Indeed, coffee has been proven not only to help people stay awake to work, to be refreshed, but also very good for health such as reducing cardiovascular diseases, fighting degenerative diseases, arteries, cancer prevention and longevity.

It seems that the great benefits of coffee have led many to drink arbitrarily. In fact, drinking too much is harmful and coffee is no exception.

One day you should drink a glass of expresso, cappuccino or latte ... is just good enough and not harmful?

How much coffee is enough?

Each individual has a different consumption of coffee. For some people, they can take 10 cups of coffee or more each day without any side effects. Meanwhile, there are very sensitive subjects and only drink 1 to 2 cups of coffee have been "drunk."

However, the body should only tolerate a certain amount of coffee, so that this food to promote all the benefits that have been scientifically proved.

For normal people, maintaining a daily intake of about 400 mg - 500 mg of coffee is considered "safe" and does not cause the effects such as fast heart beat, insomnia, restlessness , dizziness and blurred vision.

Health professionals do not set the standard for the number of cups of coffee because now many cafes serve customers with large size cups, sometimes containing 200-300 mg coffee / cup. In addition, depending on the concentration or dilution of the coffee.

But do not worry too much about the amount of coffee consumed in a day. Instead, look for "standard" coffee, without the side effects of sleep and the brain.

Signs you drink too much coffee

A sign that you are "addicted" to coffee is very dependent on this drink, that is, can not reduce the consumption of coffee even in just one day.

Coffee contains stimulants, which means that it affects the central nervous system, causing fast heart rate and slow blood flow.

If you drink too much coffee for a long time (over 500 mg of coffee a day), you may experience "overproduction" symptoms including anxiety, stomach pain, diarrhea, insomnia, constant headache ....

Suggestions for quantifying coffee in beverages

Not only does it appear in a cup of coffee, it is also found in many other beverages such as tea, coca, tonic water, and so on. Here is quantitative coffee in some popular drinks today.

- Black coffee: 65-120 mg.

- Espresso: 30-60 mg.

- Latte or cappuccino: 100-120 mg.

- Energy drinks: 80-100 mg.

- Tea: 10-50 mg

The best time to drink coffee

Scientists have discovered that for coffee to work the most effective, both good for health and bring consciousness to the user, you have to know when to drink.

Dr. Steven Miller, neuroscientist at the Army Medical College in Bethesda, Maryland, said the best time to drink coffee was between 9:30 AM and 11:30 AM. Because caffeine interacts with a key hormone in the body called cortisol that helps regulate the biological clock and promotes alertness.

Drink coffee at around 10:30 am, you will work twice as effectively because caffeine stimulates the central nervous system to make you alert.

At 2 points in the day, coffee should not be used as the mold from 12h - 13h and 5h30 - 6h30. At this rate, cortisol levels increase to the highest level, then the stimulation of caffeine with the body is not clear, coffee will not work effectively.