There had to be some explanation:
"Extra time spent grooming has a positive and significant effect on both men's and women's earnings, but the effect is considerably larger for men," they said in a paper called "Mirror, Mirror on the Wall: The Effect of Time Spent Grooming on Wages." "For men, every extra 10 minutes daily grooming increases their weekly wages by 6 percent. However, women would have to nearly quadruple their daily grooming time to receive that much in additional wages."
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