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��ӽ紫ý. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

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

We're a step closer to two men being able to have genetic children of their own after the creation of fertile mice by putting two sperm cells in an empty egg

News

Health

Nightmares linked to faster biological ageing and early death

News

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

News

Illustration of T cell therapy targeting multiple myeloma

Health

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

News

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

News

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

News

Health

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

News

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

Features

Cartoon-style illustration imagines two people in the small intestine, surrounded by microbes

Health

The surprisingly big impact the small intestine has on your health

The workings of the small intestine have long been a mystery, but now we are discovering the hidden roles this organ plays in appetite, metabolism and the microbiome – and how to look after it better

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

News

Health

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

News

Health

How you breathe could reveal a lot about your health

News