“It’s crazy that he made his staff and detail come with him to the gym and expose them like that,” the source said.

But the incident is just one example of the mayor’s disregard for the health of his staff during the crisis, multiple sources told The Post.

There’s also growing frustration from senior aides, who fault the mayor for dithering instead of making decisions, micromanaging instead of leading, and insisting he knows best instead of listening to others, three sources said.

‘Thank god for Cuomo,’ is a common refrain among the mayor’s staff, made only partly in jest, sources said.