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Discover the latest health news, scientific discoveries and big ideas about the human body and treating diseases, covid-19, diet, fitness, exercise, wellness and how to live a healthy life.

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Resuscitated human retinas respond to light 10 hours after death

Perfusing donor human retinas with blood and oxygen meant they continued to respond to light for up to 10 hours after death, marking a significant step towards eye transplants that restore vision

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Fluorescence in situ hybridisation (FISH) micrograph of Down's syndrome chromosomes (red) in a foetus' cell nuclei (blue). The FISH technique enables individual chromosomes within the nuclei to be tagged with a fluorescent dye. Here, three copies of chromosome 21 are seen in each nucleus, the cause of Down's syndrome. In a healthy human, each nucleus contains only two copies of chromosome 21. Chromosomes are the parts of a nucleus responsible for carrying the genetic code. Down's syndrome is a genetic disease which causes mental retardation and typically flattened features. It affects around 1 in every 650 babies.

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Injection halves risk of chromosome error common in older human eggs

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Light micrograph of a section through follicles in an ovary. The immature eggs (orange) are surrounded by a fluid-filled cavities (light pink) and granulosa cells (dark pink), which provide immature eggs with nutrients and hormones

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Our fertility window could be extended by making ovaries softer

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Lambs born via IVF using highly immature eggs in major breakthrough

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Ovary identity shift after menopause may contribute to inflammation

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5 things to know about sunscreen, according to a skin cancer expert

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Beetroot juice is trending – its benefits go beyond the hype

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Mandatory Credit: Photo by Peter Jolly/Shutterstock (9326460i) Forensic scientist Sue Black examines bones from the crypt at Wardlaw Mausoleum to discover if they are the bones of Simon "The Fox" Fraser the 11th Lord Lovat who was the last man to be beheaded Headless remains exmained to see if they belong to Simon "The Fox" Fraser, Inverness, Scotland - 05 Oct 2017

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New Scientist recommends an unsettling deep dive into forensic science

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A type of fibre that stimulates GLP-1 release approved for use in food

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I’m the first person whose life was saved by CRISPR base editing

When standard leukaemia treatments failed, 13-year-old Alyssa Tapley was told she had only weeks left – but then she was offered an experimental procedure

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Your menstrual cycle may affect how well vaccines work

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I have a 100 per cent chance of getting cancer due to a rare gene

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We’ve uncovered a master gene that switches on human development

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Phages could enable us to hijack vaccine immunity to kill cancer cells

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