Holly Willoughby was fighting back tears on Thursday's This Morning as she interviewed a mother who is fighting to keep her son alive.
Archie Battersbee is at the centre of a life support treatment dispute which claims that parts of his brain have died.
Doctors treating the boy at the Royal London Hospital in Whitechapel, east London, say life-support treatment should end.
Hollie Dance and Paul Battersbee believe son Archie may have been taking part in an online challenge when he was found unconscious at home.
Hollie joined Holly and her co-host Phillip Schofield in the ITV studio on Thursday as she recalled what happened the day that she found Archie.
Understandably, Hollie became very emotional as she detailed giving her son CPR and running outside for help before calling an ambulance.
"First of all I thought he was just standing there but then I realised he had something tied around his neck so I ran over to him and tried to get it off, it had cut off his windpipe," Hollie explained.
TV presenter Holly was seen trying to keep herself composed as she listened to Hollie's story, and at one point put her hand to her chest as she fought back tears.
Hollie revealed that within about 10 minutes of arriving at hospital with Archie, she was told: "He probably won't survive."
The youngster has not regained consciousness but his mother told Holly and Phil: "He's already making efforts to breath on his own."
"You have to have every possible hope you can," Phillip said as Hollie replied: "Definitely because I just think if I don't explore every avenue and if I don't fight for his life and then later on we realise, 'well actually we didn't look into that', I'm gonna spend the rest of my life not knowing and thinking, 'what if, what if?'
"And I'm going with my gut, a mother's gut instinct, I think you should really go with it," she added.
Holly, 41, completely agreed and told her: "There isn't a parent on this planet who wouldn't be doing what you are doing now."
Phil added: "It's hanging over you and it all seems so horribly brutal... the medical experts have said there's no hope here."
"That's not entirely true," Hollie replied, before explaining: "There's a medical expert, he's got like a 37-page CV of just pure excellence and he totally disagrees with what the Royal London are saying."
Hollie confirmed that she was in court within two weeks of the incident and said: "Monday coming will be our ninth court appearance."
This Morning fans tuning in at home were also emotional whilst watching the interview and took to Twitter to comment.
"Heartbreaking I'm in tears #ThisMorning," one person posted, while another tweeted: "My heart breaks for Archie family poor kid.. #ArchieBattersbee #ThisMorning."
And a third viewer added: "#ThisMorning gosh this is horrendous #ARCHIE I can understand they're clutching at anything."
This Morning airs weekdays at 10am on ITV and ITV Hub.
