In appraising their virility, men turn to a number of measurements. Turns out, at least one of them has an actual physiological basis — and it's not the one you'd think.
According to a new Canadian study, the car a young man drives can trigger an endocrinological response, with an older, high-mileage sedan leading to a slight deflation in testosterone and more exotic wheels spurring a significant increase in the sex hormone. Put simply, a man's machine affects his macho machinery.
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