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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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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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A common and treatable cause of heart attacks is being overlooked

Research suggests inflammation may be just as important as cholesterol as a cause of heart attacks, suggesting different treatments should be considered for prevention

Analysis

Male XY chromosomes, artwork. The Y chromosome (right) is found in males and is shorter than the X chromosome (upper left). The latter has been labelled with a white glow that can represent a genetic mutation. An individual's sex is determined by the presence or absence of the Y chromosome. Women are XX, while men are XY. Chromosomes are a condensed form of the genetic material DNA (deoxyribonucleic acid), which condenses into chromosomes during cell replication. Each chromosome has two identical strands (chromatids), aligned in parallel and joined at the centromere.

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Mice have been born from eggs derived from male cells

News

Changes to surrogacy laws must consider future reproductive technology

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Changes to surrogacy laws must consider future reproductive technology

Comment

alzheimer's disease with MRI; Shutterstock ID 1025800153; purchase_order: -; job: -; client: -; other: -

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A new mitochondrial theory of Alzheimer's deserves serious attention

Leader

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Breastfed C-section babies get more of their microbiomes from milk

News

TXBTRF 3d rendered medically accurate illustration of amyloid plaques on a alzheimer nerve cell

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Restoring the brain’s mitochondria could slow ageing and end dementia

Features

Sickle cell red blood cells

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Sickle cell disease is now curable, but the treatment is unaffordable

News

LOS ANGELES, CA - NOVEMBER 03: Nicole Fahey, of Altadena, six months pregnant, receives a Pfizer vaccination booster shot from RN Veronique (cq) Vida (cq) at Eugene A. Obregon Park on Wednesday, Nov. 3, 2021 in Los Angeles, CA. The County of Los Angeles, including Supervisor Hilda L. Solis, Dr. Barbara Ferrer, Director of Public ÎçÒ¹¸£Àû1000¼¯ºÏ, and Norma Edith Garc?a-Gonz?lez, Director of Parks and Recreation, will host a media event kicking off COVID-19 vaccinations for children ages 5-11 in Los Angeles County. The COVID-19 vaccine manufactured by Pfizer and BioNTech is proposed to be given in two 10-microgram (mcg) doses administered 21 days apart. (Gary Coronado / Los Angeles Times via Getty Images)

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Covid-19 vaccines during pregnancy protect newborns from infection

News

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Drunk mice sober up twice as fast when given hormone injection

News

Big cats, such as lions and tigers, have tested positive for the coronavirus before, but this is the first known case of a lion probably transmitting the infection to zoo workers

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Lion infected with covid-19 probably passed it on to two zoo workers

A lion at Potawatomi Zoo in South Bend, Indiana, tested positive for the SARS-CoV-2 coronavirus after it started coughing and became breathless. Zoo workers who had cared for the lion later caught the infection

News

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Man in Florida killed by rare, brain-eating amoeba Naegleria fowleri

News

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Just 500 extra steps a day lowers heart disease risk for older adults

News

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Norovirus outbreak: Why is the number of cases in England so high?

News

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Major drugmaker cuts insulin costs in the US by 70 per cent

News

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