the second link you pasted is a study made by economists, not real scientists, strike that.
The first one you really didn't read, did you? "In contrast to received wisdom regarding testosterone and risk, the present data provide the first robust evidence for a nonlinear association between economic preferences and levels of endogenous testosterone."
"Despite the common view that high testosterone levels lead to risky decisions across numerous domains, we found that testosterone has a quadratic relationship with economic risk preferences: Individuals with low and high levels of testosterone (within their gender) were risk and ambiguity neutral, whereas individuals with intermediate levels of testosterone were risk and ambiguity averse."
The first one you really didn't read, did you? "In contrast to received wisdom regarding testosterone and risk, the present data provide the first robust evidence for a nonlinear association between economic preferences and levels of endogenous testosterone."
"Despite the common view that high testosterone levels lead to risky decisions across numerous domains, we found that testosterone has a quadratic relationship with economic risk preferences: Individuals with low and high levels of testosterone (within their gender) were risk and ambiguity neutral, whereas individuals with intermediate levels of testosterone were risk and ambiguity averse."