Sugar and Spice and Dirt and Gum From Under the Seat

“There’s a growing body of research showing that children exposed to lots of germs early in life are less likely to develop allergies, asthma or autoimmune disorders as they grow up. But … [g]irls are expected to stay squeaky clean while boys are encouraged to play outside … [a]nd that might explain why women have higher rates of certain illnesses.” — Filthy kids win.

Photo via Toddlers and Tiaras