In contrast young women, aged between 18 and 24 watched an average of just 15 minutes of adult material each week. One in three light users, who spent less than an hour a week viewing porn, said they had missed a deadline or appointment as a result.
But this figure rose to four out of five among the 4 per cent who were heavy users watching more than 10 hours a week - which is regarded as 'problematic and potentially compulsive' by doctors.
The poll of more than 1,000 people aged 18 to 24 by BBC Radio One Newsbeat found that one in four men feared they were watching too much. It also showed that one in four men was concerned about the type of images they were viewing.
One in three young adults who were light users felt their use of pornography had upset a partner or caused relationship problems, rising to seven out of 10 of those who watched more than 10 hours. And one in four said viewing pornography made them less interested in sex with a partner, rising to three out of five heavy for users.
Dr Heather Wood, from the Portman Clinic, told the programme: 'Those people spending large amounts of time accessing porn are not having more fun.'
'They are more worried about themselves, more worried about what they are looking at, and report more relationship problems.'
Hannah Ewens, 19, said young men were even expecting their girlfriends to act like porn stars in the bedroom.
'All the guys my age that I know watch it regularly,' she told the programme.
'Whenever they talk about sex they're having with actual girls they talk about it in the same way as they do about porn.'
'If that's what they're learning, then that's what they're going to be taking into the bedroom. And what guys think a good girlfriend is in bed is like whatever these porn girls are doing.'
Source : http://english.kompas.com/read/2011/04/22/10493725/Young.Men.Watch.TWO.HOURS.of.Porn.Online.Each.Week
