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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.

Fascia: The long-overlooked tissue that shapes your health

Health

Fascia: The long-overlooked tissue that shapes your health

The connective tissue that surrounds your muscles and organs, known as fascia, has always been ignored – but new insights suggest it holds the key to tackling chronic pain and immune dysfunction

Features

Cross section of infertile mouse testis showing previously frozen transplanted rat germ cells and sperm. Frozen testicular tissue still viable after two decades.

Health

Rat testicle cells make sperm after being frozen for 23 years

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H1N1 1918 influenza virus

Health

Deadly 1918 flu pandemic may be source of modern milder seasonal virus

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Some period-tracking apps sell data to third parties

Health

Are period-tracking apps still safe to use in the US post Roe v Wade?

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A man wearing protective mask

Health

How quickly can you catch covid-19 again if you have already had it?

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People queue for a PCR covid-19 test in Johannesburg, South Africa, on 30 November 2021

Health

Covid-19 news archive: April 2022

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All moral rights asserted. Recolouring or alteration of the image is prohibited without permission. Light micrograph of a section through a duodenum, the beginning of the small intestine, which runs from the stomach to the large intestine. It is where digestion begins and nutrients are absorbed into the blood. The interior (lumen, left) is lined with villi, which are folds in the intestinal surface that greatly increase the surface area for absorption. Also within the surface are crypts of Lieberkuhn (red-lined ovoids), which secrete enzymes into the lumen that help to digest the food. Underlying this layer is the muscularis mucosae (thin violet line) and connective tissue (blue). Across bottom are layers of smooth muscle and then circular and longitudinal muscles that contract and relax to move food through the duodenum. Magnification: x100 when printed at 15 centimetres wide.

Health

Irritable bowel syndrome may be caused by overreacting gut cells

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Undertakers

Health

Why is it hard to count the number of deaths caused by the pandemic?

Analysis

Pig heart surgery

Health

Man who received pig heart transplant has died after pig virus found

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MRI brain scan of someone with Parkinson's disease

Health

Brain cells that are linked to Parkinson’s disease finally identified

High-tech genetic sequencing has found the brain cells connected to the movement disorder, which could lead to new treatments

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Health

Anti-vaccine views may soften after people hear extreme implications

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Health

Just 1 in 20 adults in England exercise their muscles enough

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Health

A new weight loss drug could be used to prevent obesity. Will it work?

Features

Health

Vaccine may protect against the virus behind multiple sclerosis

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