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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.

Health

Women's pelvises are shrinking – how is that changing childbirth?

Over the past 150 years, the rise in Caesarean sections and changes in diet could have led to smaller pelvises among women – which may make vaginal birth more difficult but could also reduce common conditions associated with childbirth

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Adult male mice that have two fathers and went on to have offspring of their own

Health

Mice with two fathers have their own offspring for the first time

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Health

Nightmares linked to faster biological ageing and early death

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Health

To understand sunburn, you need to know how UV provokes inflammation

Comment

Your brain tracks your sleep debt – and now we may know how

Health

Your brain tracks your sleep debt – and now we may know how

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Illustration of T cell therapy targeting multiple myeloma

Health

CAR T-cell therapy could be made in the body of someone with cancer

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Human DNA in its natural state inside cells (left) compared to eight hours after being infected with the cold sore virus (right)

Health

Cold sore virus immediately reshapes our genome to boost its growth

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An illustration of the drug rapamycin (red) inhibiting the protein complex mTORC1, which has various effects on cellular function

Health

Rapamycin seems to boost longevity as effectively as eating less

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Health

The best non-drug therapies to relieve the pain of knee osteoarthritis

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Crawling deer tick on human hairy skin background. Ixodes ricinus or scapularis. Dangerous parasitic mite on blurry pink texture. Disgusting biting insect. Encephalitis infection. Tick-borne diseases.; Shutterstock ID 1568583163; purchase_order: -; job: -; client: -; other: -

Health

Why Lyme disease and other tick-borne conditions are on the rise

Ticks are spreading globally and bringing familiar conditions such as Lyme disease with them, as well as totally new ones. Now research is revealing how to prevent and treat the diseases they carry

Features

Health

The surprisingly big impact the small intestine has on your health

Features

Health

How a US agriculture agency became key in the fight against bird flu

Analysis

Health

Blood vessel organoids quickly minimise damage to injured tissue

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Health

Complex blood vessel nets could be 3D printed for artificial organs

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