Health
Parasitic DNA makes us age faster – but we’re not sure why
Genetic parasites called retrotransposons become more active as we age, and an animal study suggests this may trigger immune responses that shorten our lifespans
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Genetic parasites called retrotransposons become more active as we age, and an animal study suggests this may trigger immune responses that shorten our lifespans
We've long known there was an ancient language that gave rise to English, Bengali and dozens of other tongues – now we’re on the brink of working out where Proto-Indo-European was spoken