It's harmful to do night shifts and (a few days later) day shifts right?

I've been having night shifts, and then a few days later day shifts. I've been pretty tired all the time and it feels harmful.

I think I should try to find job(s) that are either only day or only night?

I'm not sure how airflight attendants do it cause it kinda feels like i'm jet lagged when i have to try to move my sleep schedule around so much,