The polling organization YouGov carried out a survey into the U.K.’s clothes washing habits. It found that 84 percent of those surveyed changed their underpants every day.
That figure rose to 89 percent for those who voted Remain, and fell to 81 percent for Leave voters.
That’s a large enough gap to have swung the referendum result.
Sidenote of particular interest:
One percent of all those surveyed did not know how often they changed their underpants.