Big picture, you see some things like drops in testosterone levels in men and women. (completehumanperformance.com)
The Italian supporters showed big drops in testosterone (50 %) while the winners enjoyed a similar rise with some showing a rise of 100 %! (predatornutrition.com)
According to the studies, lack of omega - 3 fatty acids in your diet, which is a more common case than not, can result in a noticeable drop in testosterone production. (fitnessandpower.com)