Prince Andrew's sweating denial was thrown out the window by Good Morning Britain's Dr Hilary.
The telly doctor, whose broadcasting medical career spans three decades, said it was an "extraordinary" claim by the royal.
During a first Newsnight interview with Emily Maitlis, Prince Andrew denied he sweated when he was confronted about claims he slept with Virginia Giuffe (at the time Roberts).
The Duke Of York said he couldn't be sweaty in a nightclub in 2001 because he doesn't sweat.
He has been in the firing line after Mrs Guiffre accused him of sleeping with her when she was 17.
At the time, she said she was being sex trafficked by wealthy paedophile Jeffrey Epstein.
Dr Hilary had his reservations about Prince Andrew's so-called medical condition stopping him from sweating.
He explained: “It’s an extraordinary claim – there’s only three things that can cause this condition called anhidrosis, firstly it can be congenital, which it clearly isn’t in this case.
"Secondly it can be a prelude to something like heat stroke, where you’re so empty of body fluid you can’t sweat, clearly it isn’t the case here.
"And there’s a third explanation that simply he had an injury or some kind of serious condition which would affect his whole body, and again, which clearly isn’t the case."
During a heated debate on Monday's Good Morning Britain, the doctor insisted Prince Andrew's "adrenaline" explanation "doesn't make sense".
The medic made it publicly clear he was "sceptical" of the claims.
He added: "As for the adrenalin thing in the Falklands, it doesn’t make sense. Sweating isn’t mediated by adrenalin, it’s mediated by acetylcholine… absolutely sceptical.
“It’s very, very rare indeed. I’ve never seen a case.”
