Sydney Sweeney really does have good genes and not just because she's an attractive blonde. More importantly, women in general appear to have a genetic advantage that gives them a longer lifespan than men. The fact that women live longer has been well known for a long time. But a recent study across the animal kingdom suggest and explanation for why this happens.“From a human standpoint, it’s really remarkable that women live longer across almost every country in the world,” said Johanna Staerk, an evolutionary demographer at the Max Planck Institute for Evolutionary Anthropology in Germany. “So we were interested...