Jedward are the celebrities most likely to give Irish people a headache.
New research claims that the energetic duo from Lucan have been blamed for giving one in five Irish people a pain in their head.
Among more than 1,000 people interviewed by drugs company Nurofen, some 17pc selected comedian Katherine Lynch from a list of celebrities most likely to give them a headache. And 14pc picked Twink as their most likely cause of a headache.
The report was released by Nurofen to mark Headache Awareness Week.
Other celebrities on the list who were claimed to be so-called 'headache triggers' included The Dublin Wives, Brendan O'Connor and Joe Duffy.
When asked what job was most likely to cause a headache, being a teacher or childminder topped the poll, with 12pc of the vote. Other jobs that Irish people thought would leave them with a headache included dealing with difficult customers (12pc), staring at a computer screen all day (8pc), and working in IT (6pc).
It was claimed that 17pc experienced a headache once a week or more. And of those who suffered regularly, 22pc described their level of pain as 'bad,' 'very bad,' or at a level where they feel they 'cannot cope.'
Some 26 pc said they have put off daily tasks due to a headache and 15pc said they spend a day in bed due to headache.
Beside work-related causes, common triggers were lack of sleep (57pc) and skipping meals (31pc).