Irish Whitewater Forum

..The investigation looks at the ingredients of the drink and how they may affect the behaviour of consumers, potentially making them anxious and aggressive if drunk in large quantities.

Neuroscientist Dr Steven Alexander tells the programme there is 281mg of caffeine in a bottle of Buckfast, which is as much caffeine as in eight cans of coke.

Asked about the effects of consuming more caffeine than there is in 16 cans of coke, Dr Alexander said: 'It's going to have [them]bouncing around all over the place because the anxiety levels, the adrenalin will be running around.

'[They] will certainly be feeling very anxious, very aggressive.'

The programme reports that around the world there is increasing concern about the effect of caffeine when mixed with alcohol, with the US Food and Drug Administration considering banning pre-mixed caffeinated alcohol drinks altogether......