I think there might be grip strength data going back a long time. Probably from the military.

I can't imagine we know anything about divorce rates or marriage longevity by grip strength, though. Maybe, there's some regional or demographic information on grip strength over time.

Undisciplined

Worse, what you want is grip strength in men in ~1950 (maybe military has some test?). Maybe follow/find numbers of divorce and length or marriage for people with above/below average grip strength?

econ

Half-Baked Research Idea: Declining Male Grip Strength on Relationship Formation

Worse, what you want is grip strength in men in ~1950 (maybe military has some test?). Maybe follow/find numbers of divorce and length or marriage for people with above/below average grip strength?

Just spitballing but yeah