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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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Blood test could tell if a fever is due to infection or other diseases

Analysis of gene activity in a blood sample can help determine if a fever is caused by bacterial infection, a virus or an inflammatory disease

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Morning-after pill is more effective when taken with anti-inflammatory

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Tissue from a pig kidney that has been transplanted into a brain-dead man

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Pig kidney transplant in brain-dead man still functions after a month

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Inhalable mRNAs will boost vaccines and therapies for lung conditions

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Wiping stem cells 'clean' could make them easier to produce

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A lampshade coated with an iron and copper substance uses heat from the lightbulb bulb to convert air pollutants into small amounts of carbon dioxide and water

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Air-purifying lampshade reduces indoor pollution via chemical reaction

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Someone being tested for SARS-CoV-2 in Milford, Connecticut, in February 2022

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Everything we know about the EG.5 covid-19 variant and its symptoms

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The reward pathway in the brain, which is initiated in response to a stimulus, such as alcohol. The stimulus (upper orange arrow) triggers the release of dopamine (blue arrows) by the ventral tegmental area (dark blue sphere). The dopamine travels to a number of different areas of the brain that then release dopamine (red arrows). These areas include the nucleus accumbens (red sphere), which initiates motor outputs (lower orange arrow) to sustain the pleasurable stimulus, the prefrontal cortex (pink), which shifts focus and planning towards the stimulus, and the amygdala, which is involved in emotions. The hypothalamus (orange sphere) is involved in coordinating the response by secreting hormones that control bodily functions

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Gene therapy delivered into the brain could treat alcohol misuse

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Blood test could aid the diagnosis of 52 conditions including cancer

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some ultra-processed foods have their benefits

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Ultra-processed foods have a bad reputation – is it backed by science?

The relationship between ultra-processed foods and health isn’t as clear-cut as many make it seem, and in some cases eating such foods might actually be beneficial to health

Analysis

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Gene variant that raises Alzheimer's risk may boost fertility in women

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Weight-loss injections need to be for life, not just two years

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How working out your ageotype could help you live healthier for longer

Features

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We know almost nothing about thousands of proteins in the human body

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