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New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

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Hormone injection may stem age-related memory decline

A study in monkeys suggests that klotho, a hormone that dwindles in people as they get older, may offer a way to improve cognitive function in later life

News

A person wearing scrubs talks on a hospital phone

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Why so much medical care is years out of date – and how to fix it

Features

An older man weight training

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Muscle fibres become misshapen as we age but exercise can restore them

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Diary cow looking at the camera in herd on lush green grass

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Innovation, sustainability and the future of dairy

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Microscope image of Krause corpuscles

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Neurons that respond to vibration discovered in the clitoris and penis

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Genetic marker discovered for the severity of multiple sclerosis

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First cell therapy for type 1 diabetes approved for use in the US

News

A pregnant woman

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Giving birth aged 23 to 32 cuts risk of some congenital conditions

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Opioids no better than placebo for short-term lower back and neck pain

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Bird flu viruses have mutations that might help them spread to humans

A human immune system protein called butyrophilin helps to stop bird flu from infecting people, but some viruses currently circulating have mutations that might overcome this barrier

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Wim Hof's cold therapy for good health lacks robust evidence

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What we know so far about the malaria cases in Florida and Texas

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Almost 40 per cent of US girls and young women have low iron levels

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Fasting diets are not better than calorie counting for weight loss

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