Prostate Medical Study - Digit Size Apparently Matters; Submariner Digital Reaction

Every few months M.E. happens upon medical news with implications for the submarine service. Most recently, we covered Venous Risk (in pear-shaped females) and Submarine Service for you.
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What's the latest medical news? British Journal of Cancer , (30 November 2010) Hand pattern indicates prostate cancer risk [emphasis added].

Conclusion: Pattern of finger lengths may be a simple marker of prostate cancer risk, with length of 2D greater than 4D suggestive of lower risk.

Men whose index and ring fingers were the same length -- about 19 percent of those studied -- had a similar prostate cancer risk, but men whose index fingers were longer than their ring finger were 33 percent less likely to have prostate cancer.

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Other scientific studies of people's finger measurements (2D:4D ratios) produced conclusions of more relevance.

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Lesbians' finger lengths were, on average, more like men's. ... [W]e did not find a difference between gay and straight men in ring-to-index-finger ratios, but we did find a more masculine ratio in men who had more than one older brother when compared to men who had no older brothers...(Breedlove) - source

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What do digit ratios have to do with submariners? Illustrated in the panels below are digit ratios of some typical submariners past and present.

Submarines are always silent and strange.