A Look At The Effect Of Caffeine On Blood Pressure
The measure of the force exerted by the blood on the interior of the arteries represents the blood pressure. Hypertension occurs when this blood pressure is so increased in more than two occasions. The procedure for the measurement of blood pressure consists in the inflating of a cuff around the upper arm, in order to obtain a temporary stop of the blood flow inside of an artery. This is followed by the listening of the sound procedure by the blood hen it restarts to flow, while the air form the cuff is being released, by means of a stethoscope.
Coffee, chocolate, soft drinks and even tea have in their composition a stimulating substance called caffeine. Consumed with moderation, it is stimulating, but in excess, caffeine generates jitters, makes you feel nervous and even increases blood pressure. Even if you are not a hypertensive, an increasement by 3-14 mm Hg of systolic pressure and 4-13 of the diastolic pressure may be produced by the quantity of coffee, contained by more than 2 cups of coffee.
People that don't usually drink coffee or other caffeinated product, but occasionally have such one drink were observed to have an abrupt temporary high blood pressure. The effect of caffeine on blood vessels and the exact process it generates are not known for sure, but there are a few suppositions. Some specialists attribute it to the stimulation of the adrenal gland, which releases an increased amount of adrenaline and cortisol, generating high blood pressure. Others accuse it of narrowing blood vessels because it blocks the effects of adenosine.
A study performed for 12 years on 155 thousands women brought to light some surprising results: not raise of blood pressure was observed that regularly drink caffeinated coffee, unlike those who consume caffeinated cola, which puts them at greater risk of hypertension. More, the coffee consume puts the women at lower risk of developing high blood pressure.
The safe quantity of daily consumed coffee is recommended by the doctors not to be higher than 200 mg. This consume should be avoided before soliciting actions that usually makes your blood pressure higher. It is also important to keep in mind the effects of caffeine contained in coffee and soft drinks.