In both cases men (who are hairier than women, as measured by the density of follicles and the length of the vellus hair) were better off than women when the bugs were released on unshaven patches of skin, though there was no significant difference between the sexes when they were shaved.

ECONOMIST: Body hair

Three-quarters of the patients who took medicine still had angioplasty, compared with less than half of those who received stents, but there was no significant difference in how many deaths and heart attacks were prevented.

FORBES: Magazine Article