Isn't that person and stress source dependent. Also working until late in life actually improves mental acuity and fights off dementia.

So maybe work but not in excessively high stress loads is your point?

Though i think your implied underlying assumption that because she was a leader in tech and under a high workload somehow caused this is unfounded and unnecessary.

There must be a difference between the stress experienced by a financially independent CEO and a marginally-employed gig worker.

One is the stress of essentially playing a game or working on a challenge and the other is existential.

This sample size of one would seem to disagree. Stress is stress, and the outcome can certainly be the same in the end. RIP