A controversial theory may explain the real reason humans have allergies — Quartz

For me, it was hornets. One summer afternoon when I was 12, I ran into an overgrown field near a friend’s house and kicked a hornet nest the size of a football. An angry squadron of insects clamped onto my leg; their stings felt like scorching needles. I swatted the hornets away and ran for…

via A controversial theory may explain the real reason humans have allergies — Quartz

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