'Substituting registered nurses with support staff quite simply puts patient care and patients’ lives at risk'

Oral histories of Lax Kw'alaams and Metlakatla First Nation peoples about mass deaths are confirmed by genetic studies

‘Almost every woman who posted about technology was inaccurately believed to be a man,’ say researchers

The US Republican Party is now 'the most dangerous organisation in world history', US academic says

'Your first infection sets you up for either success or failure in a huge way'

The rats 'seemed to warm up to tickling', scientists report as they probe the 'mysterious sensation'

Life on Earth has already been fundamentally altered by global warming, affecting the genes of plants and animals and altering every ecosystem on the planet, according to a major review of the scientific literature.

A review by Public Health England concluded vaping is much safer than smoking and could help people quit

Credit rating agency Moody's issues guide to how climate change will affect states' ability to repay their debts

Australia’s ‘angry summer’ – when temperatures soared to nearly 50C and bushfires raged – could become typical weather if nothing is done to reduce greenhouse gases

‘Electing a climate science conspiracy theorist like Trump would make America a global laughingstock’

'Galactic eyelids last only a few tens of millions of years, which is incredibly brief in the lifespan of a galaxy'

Researchers say their findings 'underline the importance of proper diagnosis and treatment of health anxiety'

So-called earworms have a structure similar to nursery rhymes, which are designed to have a simple melody that's easy for children to learn

'If the Prime Minister and her Attorney General are so ignorant of the constitution’s obvious requirements then it’s certainly time to write it down and teach it,' Geoffrey Robertson QC says

Geoffrey Robertson QC, who predicted Theresa May would need parliamentary approval to trigger Article 50, says MPs could prevent Brexit until after next election if they have 'guts and integrity'