The 12-minute regime, first revealed by Prince Harry in Spare, is said to start off with press ups, sit ups, the whole lot , according to Channel 5 s Inside Windsor Castle.
The Windsor Horse show was one of the late Queen Elizabeth's favourite annual events, and she attended it since she was a young girl - but one year she was hilariously refused entry
Zara Tindall gave her Uncle Charles a big hug today as the King made a surprise appearance at the Royal Windsor Horse Show while his cancer treatment continues.
The Duke of Sussex is expected not to receive much of a greeting from his family members when he makes his return to the UK next week without wife Meghan Markle despite his best efforts