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91色情片

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.

A study partipant wearing the glasses and testing her reading after being fit with the retinal implant

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Eye implant and high-tech glasses restore vision lost to age

Age-related macular degeneration is a common cause of vision loss, with existing treatments only able to slow its progression. But now an implant in the back of the eye and a pair of high-tech glasses have enabled people with the condition to read again

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mRNA covid vaccines spark immune response that may aid cancer survival

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Replacing sugar with artificial sweetener may help your gut microbiome

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A computer illustration of a cross-section of a lipid nanoparticle carrying the mRNA of a virus (orange strands)

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Why the next generation of mRNA vaccines is set to be even better

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A radical rethink of what makes your diet healthy or bad for you

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The improvement in hair growth after 56 days of using the serum

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Serum based on plant extracts boosts hair growth in weeks

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Therapy may be the most effective way to ease irritable bowel syndrome

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We’ve discovered another reason why naked mole rats live for so long

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A network of nerves (white) throughout the ovary of a mouse (left) and in a fragment of human ovary (right), alongside eggs (green). A growing follicle containing an egg is shown in magenta in the human ovary

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Hidden ecosystem of the ovaries plays a surprising role in fertility

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Surgeons carrying out the pig liver transplant at the First Affiliated Hospital of Anhui Medical University, China, in May 2024

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Pig liver transplant into a living person edges it closer to the norm

The first ever transplantation of a pig's liver into a living person helps us better understand how animal organs can be used to prolong, or even save, lives

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Why not all ultra-processed foods are bad for you

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Selfish sperm see older fathers pass on more disease-causing mutations

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Why everything you thought you knew about your immune system is wrong

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There are five types of sleep 鈥� here’s what that means for your health

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