Of potential interest to those concerned about cognitive changes with lowered testosterone, I would strongly recommend the book by James Dabbs (2000) [see the Bibliography (
http://www.eunuch.org/forums/showthread ... bliography) for full publication details], which has the subtitle Testosterone and Behavior.
Dabbs covers a great many topics in his 284 pages, but of definite interest to this thread is his reporting of two studies on the link between T level and occupational success. In general, he writes, higher testosterone correlates with lower status
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In one study of T level and rank in the U.S. Army, the higher the rank, the lower the testosterone. Generals had the lowest testosterone of all.
In another study of T level and occupation (divided by U.S. Census Bureau categories), other than for full-time farmers who rank lowest of all, a similar pattern was found. The occupational categories, ranked from LOWEST testosterone levels to highest are:
Professional and Managerial
Technical, Clerical and Sales
Service workers
Machine operators and Laborers
Precision production and Repair
The Unemployed
If we consider history, there is reason why so many government administrators, high church officials, and military commanders were eunuchs over a 4,000 year sweep of Eurasian history.
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