King Charles' staff are reportedly "worried he is doing too much for a man of 75", a royal insider claims.
It comes following the King's recent health scare, with His Majesty undergoing a procedure for an enlarged prostate last week at The London Clinic.
Queen Camilla, who was seen visiting her husband at the clinic over the weekend, reportedly told "workaholic" Charles to "slow down" in the wake of the health scare.
The King is reportedly known to wake very early to start work and finish the day after midnight.
The insider tells The Telegraph that the Queen "knows [his work] gives him an enormous sense of fulfilment and that she's never going to change the habits of a lifetime".
Another source claims, "The people who work for him are worried he is doing too much for a man of 75. It's sometimes a struggle to keep up with him."
Last year, Charles is believed to have undertaken more than 500 engagements, almost 100 of those being overseas.
It's believed Camilla has told Charles to take a new approach to work, with a royal insider telling The Sun, "The Queen has told him he needs to slow down a bit."
Prince William previously revealed in the 2018 BBC documentary Prince, Son and Heir, Prince William: "The man never stops. When we were kids there were bags and bags and bags of work that the office just sent to him."
The King is at the same private hospital as Kate Middleton, Princess of Wales, who underwent a major operation 12 days ago.
It's unknown how long the King will be out of action for official engagements, with Kate unlikely to return to work until after Easter, according to a statement from Kensington Palace.
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