I work some where that does double shift which is mornings one week and afternoons the next. It’s OK but id prefer standard days, I have however done triple shift for a year at one job and it completely messed me up, and to this day I blame it for giving me super high blood pressure I didn’t have before I started it. It all comes down to profits, why buy another machine to manufacture whatever it is you do when you could simply run the same machine 24/7. Although it inevitably leads to disaster one machine doing all the work as triple shifts leave little time for maintenance and seeing managers flap about because a machine broke down because you were allowed to shut it down to grease the bearings once a week is hilarious.
If anything I have the opposite with my garmin watch that shows my heart rate. I’ve gotten used to seeing what my heart rate does just before I have a panic attack. This has really helped me ‘catch’ myself before it happens and calm myself down. I’ve not had one for over 2 years.