A lot of information available from the mass-media tells us
that coffee is healthy. Even if coffee contains a large number
of compounds which have not yet been identified, it is
characterized by the presence of caffeine. In Arabica coffee,
the caffeine ranges from 0.9 to 1.5%, while Robusta can
contain as much as 3.5%. Caffeine (if taken in the right
amount) stimulates the central nervous system and
counterbalances the effects of tiredness.
It has also another important property, since it acts as a
bronchodilator in asthmatics and reduces anginous pain in
heart patients. It is widely known that a cup of coffee after
a meal can prevent a drop in blood pressure, especially in the
elderly. Coffee seems to be an effective diuretic and it is
said to be an aphrodisiac too. Without doubt caffeine has many
positive effects on several kinds of migraine and is
successfully used in the medical field.