HumansOur ancestors may have come close to extinction 900,000 years ago A genetic analysis suggests our ancestral population fell as low as around 1300 individuals nearly a million years ago, but other experts aren't convinced 51¶¯Âþ
HealthUnravelling the secrets of the vagus nerve will revolutionise medicine Vagus nerve stimulation is used to treat conditions ranging from inflammation to migraine. Mapping the nerve's complex structure of more than 160,000 fibres could usher in a new era of precision treatments Features