I am wondering if testosterone levels in humans are linked to advantages in fighting. I know they are linked to masculinity, and we all know that the more masculine a man is, the more likely he will be able to defeat a less masculine male in a fight. Do testosterone levels have a link to how good you can fight? I mean as a means for beating somebody in a fight, naturally. Let's say if two people went through the exact lifestyles. I mean same eating, same amounts of food ate, everything was identical down to the last detail. If they fought, but one had a higher testosterone level than the other, would the one with the more testosterone have an advantage? I found this on Wikipedia.org Taken from Wikipedia.org : I Googled "implicit power motivation" and it described people imagining winning a speed-based (not combat/fighting) competition. The people who imagined winning had increased testosterone levels than before and the people who did not had roughly the same amount. Also it said that winning increased the testosterone levels too. So what do you think? Are testosterone levels linked to combat skills?