OK, I get that artificial gravity through rotation is an engineering challenge.

But given the laundry list of human ailments caused by microgravity, why is the engineering challenge of spinning up some simulated gravity greater than the pharmaceutical challenge of ginning up denser bones, stronger immune systems, less atrophied muscles, weaker bacteria..?

Not to mention side effects such 'cures' would undoubtedly cause.

So, could you explain why the engineering challenge of wheels or booms is greater than the dodgy medical science of magic pills?

* I would like to point out that I had initially included the 'greater than sign' but the post saw it as a tag or something and deleted it - humph.