Explaining a gap after caregiving or layoff - 7 months and counting

My résumé shows a gap from a layoff and some health issues. I would rather hear the honest version than the polite one. I am not sure how much to explain. Did anyone get past it?

Keep your skills fresh and mention anything recent. It shows momentum.

I listed the volunteering and course under the same dates and kept the explanation to a sentence in the cover letter.