However, I am also going on vacation for the first time in also forever, somewhere where there might be a dinky hotel gym but not much else. Various parts of our biology, like our muscles and nervous system, get tired in different ways, and they need rest from exercise just like they need exercise in the first place. Most of us haven’t been on a real vacation in a really long time. I think my advice here would be the same no matter what, but especially here and now, in the year of our lord 2021: don’t worry about exercise on your vacation, I’m begging you. I definitely don’t mean that every vacation needs to be a purposeful athletic retreat with four hours of yoga every day.