Oxygen may have helped complex life arise a billion years early
23 April 2018
Earth’s air suddenly got a lot more oxygen around 1.6 billion years ago and that could have triggered the evolution of large multicellular organisms
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Finger-prick test reveals fetus's sex in the first trimester
23 April 2018
Women can now find out whether they are having a boy or a girl using a single drop of blood as soon as they are eight weeks pregnant
New blood pressure guidelines could do more harm than good
18 April 2018
Millions of healthy people have been recast as “sick” under new blood pressure rules, which could trigger unnecessary anxiety and medication use
