Ryan Tubridy has slammed Internet trolls who use social media to target others with abusive comments.
The RTE broadcaster said he has no regrets about his decision to shut down his Twitter account in 2011, despite having more than 60,000 followers.
"I'd rather read a good book than what some guy in a bedsit watching Star Trek thinks about me. I made a decision to go offline a couple of years ago and it's the best thing that's ever happened," he said.
The 42-year-old admitted that he used to seek out "critique and criticism" in reviews but when the Internet became a breeding ground for trolls, he decided he'd had enough.
"Then online came along and honestly, if you want to depress yourself as a broadcaster, read online. If I could switch off the Internet sometimes I would. Especially for kids and bullying and all the things that are so easy to do for cowards.
"You used to go to school from 9am until 3pm and then you could switch it off. Now it follows you and the bullies can follow you now, wherever you are, if they want to," said the father-of-two.
Ryan was being interviewed by former RTE presenter Diana Bunici for her book, The Pursuit of Awesomeness, and The Late Late Show presenter admitted that he initially chose a career in radio as he didn't believe he had the looks for TV.
"I thought you had to be an ex-boyband member to be on the box, and that unfortunately wasn't on the cards. Radio was a great medium for me because I didn't have the confidence in my looks but I had confidence in my personality. I never thought of TV."
When I arrive at Anne Doyle's four-storey Georgian house in the centre of Dublin, the former newsreader announces that she's "cranky" and has been all day. To say that this is disconcerting is something of an understatement - as anyone who has ever met her will testify, the former RTÉ newsreader exudes an ice-cool, almost regal presence that strongly suggests she doesn't suffer fools. And that's when she's in a good mood.