"Crown Princess Mette-Marit will undergo pulmonary rehabilitation next month, the Norwegian Royal Court has announced, forcing her to cancel her schedule for October.
In a statement shared by the Royal Court, it’s revealed that Crown Princess Mette-Marit will not carry out any official engagements except for unavoidable misses, like the official luncheon for the Opening of the Storting at the end of the month.

The future queen will carry out planned engagements this week, and is expected to resume her royal duties in November.

NRK, the Norwegian national broadcaster, spoke to a doctor who shared that pulmonary rehabilitation is a method of training the body to need less oxygen"



https://royalcentral.co.uk/europe/norway/crown-princess-mette-marit-pulmonary-rehabilitation-214219/