"BYU students are required to follow an honor code, which mandates behavior in line with LDS teachings (e.g., academic honesty, adherence to dress and grooming standards, and abstinence from extramarital sex and from the consumption of drugs and alcohol). Many students (78% of men, 10% of women) take a two-year hiatus from their studies at some point to serve as Mormon missionaries."
Omg, now it all makes sense :O
