[bncy]

What about the correlation between testosterone levels and creativity? I think that those known for being well-performing in their old age are just exceptions. https://www.sciencedirect.com/science/article/abs/pii/S00926...

[bregma]

I'm willing to bet you'll find the same correlation between skin melanin and creativity. For the same reasons. Survivorship bias is rampant in lookback studies in the social sciences.

[Terry_Roll]

They use Testosterone to treat dementia, but its not the only factor.