The fact that there is a chance that the fascist will lose. Unimaginable in Russia.

Don’t have any medical background, but I worked “8am-8pm work/24h free/8pm-8am/48h free” shifts for 5 years and didn’t have much problem switching to regular 5 day shifts. What I realized too late that those 5 years wrecked my already fragile sleep patterns and 12 hours shifts are too taxing no matter what you are doing.

So I didn’t have your exact situation but I think that switching might be better for your health in the long term in any case.

That’s not an unreasonable request unless the manager is a dumb asshole and doesn’t understand that such request can take more than one day and other tasks will suffer because of it. Done it dozens of times by request of my immediate manager.