[jniedrauer]

Actually, the opposite is true. There's no single explanation for it, but women tend to survive in much higher numbers during times of severe famine or catastrophe. It's likely a combination of several factors: Women have slower metabolisms and higher bodyfat, and they tend to form more close knit groups. Men tend to take on more physical labor, they tend to waste more energy, and are more likely to end up as social outcasts.