The study targeted 20-year-olds.
Poorer wellbeing, higher levels of aggression and negative coping strategies have been found among pornography users.
A study from the ESRI also found those who watch porn report more depressive symptoms.
It interviewed a number of 20 year olds, who were offered the chance to answer the most sensitive questions in private.
Psychotherapist in Westmeath, Rory Hafford, says the sex education children are being exposed to is online porn:
The study also found young people who use pornography are less likely to use condoms.
Men who use porn also generally have poorer wellbeing and are less satisfied with their lives.
One of the report's authors, Emer Smyth, says young men often copy what they see:
Calls Grow For 24 Hour Garda Station In Edenderry After Arson Attack
Appeal Date Set For Jozef Puska Over Murder Of Ashling Murphy
Offaly Town Demands Meeting With Garda Commissioner And Justice Minister
Ireland’s First Kidney Pancreas Transplant Recipient Dies Aged 68
Quality Of Life To Drive Offaly’s Appeal For Foreign Investment - Anna Marie Delaney
Hundreds Of Mourners Gather For Tadgh Farrell's Funeral
Dancing With The Stars ‘A Once In A Lifetime Opportunity’ - Rose Of Tralee
Uisce Éireann To Submit €6b Water Project Plan
Pedestrian Killed In Midlands Crash
Gardai Arrest Four Men Over Laois Prison Assault
Maura Higgins Set For Traitors US
Man Taken To Hospital Following Alleged Westmeath Assault
Osteoarthritis Programme Launched At Midlands Hospital
Laois County Fire And Rescue Service Welcomes Two New Fire Appliances
Offaly TD Welcomes New IDA Ireland Investment
Gardai Conduct House Searches In Connection With Offaly Arson Attack
Funeral For Offaly Arson Attack Victim To Be Held Today
Emergency Services At Scene Of Offaly Crash
Tadgh Farrell’s Father Denied Compassionate Bail To Attend Son’s Funeral