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Caffeine energy drinks 'intensify heart contractions'

RATE THIS! +51
Posted in Science on 3rd Dec, 2013 02:56 AM by AlexMuller

The team from the University of Bonn in Germany imaged the hearts of 17 people an hour after they had an energy drink. The study showed contractions were more forceful after the drink. The team told the annual meeting of the Radiological Society of North America that children and people with some health conditions should avoid the drinks.

 
Researcher Dr Jonas Dorner said: "Until now, we haven't known exactly what effect these energy drinks have on the function of the heart.
 
"The amount of caffeine is up to three times higher than in other caffeinated beverages like coffee or cola.
 
"There are many side effects known to be associated with a high intake of caffeine, including rapid heart rate, palpitations, rise in blood pressure and, in the most severe cases, seizures or sudden death."
 
The researchers gave the participants a drink containing 32mg per 100ml of caffeine and 400mg per 100ml of another chemical, taurine.
 
They showed the chamber of the heart that pumps blood around the body, the left ventricle, was contracting harder an hour after the energy drink was taken than at the start of the study.
 
Dr Dorner added: "We've shown that energy drink consumption has a short-term impact on cardiac contractility.

Tags: caffeinehearthealthbiologyenergy drinkblood pressure

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Comments

Author: Guest
Posted: 2013-12-03
+2
Energy drinks indeed need to be researched properly. Not just some short effects on the heart but also long term- good or bad?
1 Replies
Author: Guest
Posted: 2013-12-03
+1
Caffeine content in such energy drinks ranges from about 8mg of caffeine - about the same as an espresso coffee - to as much as 400mg. This is alarming
3 Replies
Author: Guest
Posted: 2013-12-03
-1
There is a rule that drinks containing more than 150mg of caffeine per litre must be labelled with the term "high caffeine content" Reply
Author: Guest
Posted: 2013-12-03
+0
We have to take regulatory actions, including sales restrictions and product labelling Reply
Reply
Reply
Author: Guest
Posted: 2013-12-03
+2
It is important to research the impact on people with heart disease and make recommendations
2 Replies
Author: Guest
Posted: 2013-12-03
+0
The research team advises that children and people with an irregular heartbeat should avoid the drinks. Reply
Reply
Author: Guest
Posted: 2013-12-03
+0
A head teacher recently claimed that he had seen pupils breakfasting on energy drinks which are not usually recommended for children Reply
Author: Guest
Posted: 2013-12-03
+1
Like all food and drink, energy drinks should be consumed in moderation as part of a balanced diet and active lifestyle
3 Replies
Author: Guest
Posted: 2013-12-03
+0
There is no reason why adults should not choose an energy drink, containing about as much caffeine as a typical cup of coffee, when they want a physical or mental boost Reply
Author: Guest
Posted: 2013-12-03
+0
Many of us are unwittingly consuming way more than we think - with worrying implications for our health and society as a whole Reply
Reply
Author: Guest
Posted: 2013-12-03
+0
They focus on hearth here, what about the brain Reply


 

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