For the King, royal duties are not a chore or a simple tick-box exercise - it’s his vocation and he thrives on his work - and sees his many engagements as being of great benefit to his overall wellbeing. He’s a workaholic, known for sitting at his desk late into the night working through state papers, skipping lunch and spending as much time with the public as possible.

After his long-haul trip to Australia and Samoa last October, a senior Palace official said the gruelling nine-day tour had been “the perfect tonic”. “It's lifted his spirits, his mood and his recovery. In that sense, the tour - despite its demands - has been the perfect tonic," they said.

That’s why the King has thrown himself into his work this year, travelling up and down the country to carry out engagements and busying himself with his work behind the scenes.

Just this month, he conducted 23 public engagements and 29 audiences, an investment ceremony, and a Privy Council meeting.

His packed schedule has included hosting Ukrainian President Volodomyr Zelensky, spending three days in Northern Ireland, and leading the annual Commonwealth Day service at Westminster Abbey.

On Wednesday, I covered his visit to a soil exhibition at Somerset House, where he was on his feet for over an hour - having overran by more than 30 minutes. He was his usual jovial self, cracking jokes and spending time chatting with experts, farmers and artists.

It’s plain for all to see how much joy he takes from duty and service - and he enjoys nothing more than getting out and about and engaging with the public.

That’s why his decision to postpone his visit to Birmingham yesterday will not have been taken lightly.

He’s from a generation of royals who put the needs of the nation above their own, as epitomised by Queen Elizabeth’s two famous mantras: “We have to be seen to be believed” and “Never complain, never explain”.

But it’s perhaps the words of his late father, Prince Philip, that have stuck with him the most.

The “no fuss” royal would often tell his children to “just get on with it”, and his eldest son has certainly taken on that stoic approach to life since his cancer diagnosis last February.

The King’s hospital admission on Thursday is simply seen as a “bump in the road” and sources are keen to stress that his treatment continues in a “positive direction” and there was “no drama”.

His schedule will likely be slightly reduced next week as he prepares to travel to Italy with the Queen.

His approach to his recovery is admirable, but let’s hope he heeds his wife and his doctor’s advice to slow down and focus on his recovery.

While sources believe his work is of great benefit to his overall wellbeing, a restful few days at his beloved Highgrove is quite literally just what the doctors ordered.

Let's just hope the sunshine and balmy temperatures hold so the King can enjoy a cup of tea and an afternoon stroll in his cherished gardens.