Transfusing young blood into older people might be rejuvenating, but there could be even better ways to slow the ageing process
Neanderthals vanished from Earth about 40,000 years ago. Exactly what drove them to extinction, however, remains a mystery, with their disappearance variously attributed to anything from climate change to inferior cognitive abilities or even cannibalism.
When air is sucked into the tube, however, harmful bacteria from the throat can be carried along too. This is not such a problem in adults, because the Eustachian tube is oriented vertically and it is difficult for pathogens to rise upwards to reach the middle ear. For Neanderthals that drop-off might never have come. Dr Pagano and his team examined three well-preserved adult Neanderthal skulls, two of which came from Italy and the third from Gibraltar. Their measurements, reported in the, indicate that the Eustachian tube was horizontal in all three, suggesting adult Neanderthals may have been as likely to develop ear infections as today’s infants.
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