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10 articles from Guardian Unlimited Science

Contact lens that can release drug could be used to treat glaucoma

Invention can deliver medication after detecting pressure in the eye from fluid buildup, scientists say A contact lens that can release a drug if it detects high pressure within the eye has been created by scientists who say it could help treat glaucoma.Glaucoma is an eye disease that involves damage to the optic nerve, and can lead to blindness if not treated. Continue...

North Korea on brink of Covid-19 catastrophe, say experts

Number fallen ill reportedly rose to almost 1.5 million as country thought to be vaccine-less grapples with what it calls ‘fever’North Korea stands on the brink of a Covid-19 catastrophe unless swift action is taken to provide vaccines and drug treatments, experts have warned, as the number of people reported to have fallen ill rose to almost 1.5 million.The isolated country reported another...

How to trick your brain into better eating habits

Ditching the cutlery, scoffing a big first bite and discussing the carrots can help rewire our brains and make us more mindful of our mealsBefore diving in at a dinner party, my friend Lizzie always makes a point of asking the host to describe each dish they’ve made. It’s a way of acknowledging their efforts – but, according to food psychology, she could also be helping herself and her...

Women almost twice as likely to be trapped in crashed vehicle, study finds

Exclusive: Calls to improve car design and safety as females also found to have different injury patterns to menWomen are almost twice as likely as men to become trapped in a motor vehicle after a crash and they also sustain different patterns of injury, data suggests.The research – the first large UK study to compare sex differences in injury patterns and the likelihood of becoming trapped...

Achoo! The hay fever season lasts longer than ever. Here’s what we can do about it | Kate Ravilious

The climate crisis is giving trees a bigger window to spread their pollen, but cleaner air and better early warning forecasts can help protect usIf you have sneezed your way through the last few days, you are not alone. About a quarter of the UK population are thought to suffer from hay fever, with numbers continuing to grow. And the latest research suggests that the climate crisis is going to...

Osteoporosis patients should not be afraid to exercise regularly, say experts

UK’s first exercise guidance on bone disease affecting 3m in Britain encourages people to move moreMillions of people with osteoporosis should not be afraid to exercise regularly, experts have said in guidance aimed at boosting bone health, cutting the risk of falls and improving posture.The condition, which weakens bones and makes them more likely to break, affects more than 3 million people in...

Who owns Einstein? The battle for the world’s most famous face

Thanks to a savvy California lawyer, Albert Einstein has earned far more posthumously than he ever did in his lifetime. But is that what the great scientist would have wanted?In July 2003, the physicist and Pulitzer-prize-nominated author Dr Tony Rothman received an email from his editor bearing unwelcome news. Rothman’s new book was weeks from publication. An affable debunking of widely...

Is the world keeping Cop26’s climate promises?

Last November in Glasgow, countries agreed to limit the global temperature rise to 1.5C above pre-industrial averages. Six months on, the world has changed, with the war in Ukraine, high energy prices and the cost of living crisis threatening to derail us from achieving our climate goals. Ian Sample speaks to the Guardian’s environment correspondent, Fiona Harvey, about what promises are still...

Infertile men may be twice as likely to develop breast cancer, study suggests

Researchers find link between fertility issues and cancer risk, but say biological reason unclearInfertile men may be twice as likely to develop breast cancer than those without fertility issues, according to one of the largest ever studies of the disease.Breast cancer in males is less common than in females and its relation to infertility had previously been investigated only in small studies....