They’re very interrelated, in both directions. One unusual recent example that surprised even me (who already is convinced from many sources of the interconnections), was:
I was about to go on a long silent meditation retreat at a place and with people who were new to me, despite also needing to make progress at work, and having had some stored unprocessed feelings about various things. In the middle of the night before I was to leave, I developed serious symptoms of throat illness that were keeping me awake – fever, bad sore throat, sweating, etc., just like when I’ve had a bad flu in the past, which hasn’t happened to me for years, but did that night. I did some mental/spiritual techniques, and was able to get to sleep. The next morning I had barely any symptoms, and within a day or two (at the retreat) the symptoms had all vanished on a schedule that has never been so quick for me (nor in the sequence they occurred) with any flu I’ve had. I’m clear that these were caused by a subconscious part of me that was resisting the meditation work by trying to sabotage my attendance of the retreat.