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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.

Test article - Obesity may damage immune cells that prevent psoriasis

10 September 2025

Mice with obesity have fewer immune cells in their skin that protect against psoriasis-related inflammation, potentially explaining why obesity increases the risk of the condition


Obesity may damage immune cells that prevent psoriasis

20 July 2023

Mice with obesity have fewer immune cells in their skin that protect against psoriasis-related inflammation, potentially explaining why obesity increases the risk of the condition


We may finally know why psychological stress worsens gut inflammation

26 May 2023

A pathway between the brain and the immune system discovered in mice could explain why prolonged stress can exacerbate inflammatory bowel disease


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Fasting for 24 hours could weaken the immune system

23 February 2023

Mice that fasted for 24 hours had more inflammation and were more likely to die from a bacterial infection than mice on a regular eating schedule


Cropped shot of an unrecognisable man sitting alone at home and suffering from arthritis in his hands - stock photo

Vagus nerve receptors may be key to controlling inflammation

18 January 2023

Researchers identified receptors in the vagus nerves of mice that help control inflammation, which could improve treatments for conditions such as rheumatoid arthritis where the pathway may malfunction


An illustration of neurons

Stimulating the vagus nerve may reduce symptoms of multiple sclerosis

9 December 2022

An implanted device that stimulates the vagus nerve reduced symptoms of multiple sclerosis in rats as effectively as standard medications


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Acid produced by the brain could drive disease-related psychosis

16 November 2022

Kynurenic acid is made in the brain and could play a role in psychosis related to schizophrenia, Alzheimer’s disease and bipolar disorder – and new drugs may be able to reduce it


Couple in bed

Vaginal immune activity increases after having sex for the first time

7 November 2022

Levels of immune system proteins in the vagina increase after having vaginal intercourse for the first time, suggesting the body is responding to being exposed to new bacteria


Illustration of a B cell producing antibodies

Vaccines that prolong the immune response may give better protection

28 October 2022

Most vaccines are designed to provoke a quick immune response, but a longer one might allow the most effective immune cells to stick around in the bone marrow


Image of Aspergillus, a black mould that can cause pulmonary infection

Dangerous fungal lung infections could be treated with CAR T-cells

28 September 2022

Adapted immune cells known as CAR T-cells could treat lungs infected by the fungus Aspergillus fumigatus in people with suppressed immune systems, a study in mice suggests


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