COFFEE is the favourite beverage in the world, coffee, contains a natural alkaloid content in plants of coffee, tea, cocoa and guarana. We are talking about caffeine, which in nature acts as a powerful insecticide to protect plants from attack by insects mentioned above and various species of spiders.
It is also present in beverages and foods in common use, has a stimulating effect and is used in medicine for therapeutic purposes. However if consumed in excessive amounts, can be fatal to humans.
Caffeine is so not only in coffee. It can be found in tea leaves, kola nuts or cocoa beans. Can then be added by hand to other products, in fact, for its exciting is present in almost all energy drinks. In particular, 98% of the caffeine we consume comes from beverages. The rest comes from other foods (all chocolate) or drugs.
Here are 7 curiousities to know about this matter that we take every day and often in an unconscious way.
“decaffeinated”coffee does not mean without caffeine. Recent studies in the US have found that in a cup of decaffeinated coffee are still present about 12 mg of caffeine, while a cup normal between 100 and 200 mg.
Also in the US, a study has shown that those who consume more than 400 mg a day (almost twice the amount consumed by the world population on average in a day) is more exposed to problems of insomnia, irritability, and rapid heartbeat
Almost all energies drinks on the market contain less caffeine than imagined. In fact, their content is less than one cup of coffee traditional narrow. Caffeine is much present in tea.
Caffeine takes 30 to 60 minutes to reach the highest level in the blood. The body metabolizes generally half of the substance in 4/5 hours. The effects are greater for people who do not usually consume foods or drinks with caffeine. Usually in a healthy adult, caffeine goes in a circle in half an hour, while individuals who have a slow metabolism, may have trouble sleeping if you consume tea or coffee after 18. Therefore it is recommended not to take caffeine in the hours evening, especially before going to bed. Only those lucky enough to have a pretty fast metabolism, does not see any effect “negative” when consuming foods or drinks with caffeine in the late evening.
Women metabolize caffeine usually faster than men. However for women in pregnancy is advisable to avoid or at least limit your intake of caffeine as an excessive consumption may have negative effects. Regarding the regular smokers, who usually like smoking immediately after a good coffee, adsorb the substance twice more rapidly than non-smokers.
The coffee beans darker contain a higher amount of caffeine? And ‘false! The color of the coffee beans depends, in addition to the species of plant, the type of roasting. More grain is “burned” and its color will appear more intense.
Not all types of coffee containing the same doses of caffeine. Prepared by now in all restaurants, bars and fast food, can have different strengths depending on the brand. For example Starbucks coffee has twice the caffeine than what is offered at McDonald’s.