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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

Altered gut microbiome linked to fertility issues in people with PCOS

People with PCOS who struggle to conceive tend to have lower levels of a gut microbe that has been linked to endometrial function

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Health

Gastric bypass surgery may cut the risk of bowel cancer

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Gay couple adopted baby girl and enjoying the parenthood

Health

How might society react to babies with two genetic fathers?

Leader

Health

Cancer cells steal mitochondria from nerve cells to fuel their spread

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Health

Heart attacks are no longer the leading cause of death in the US

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Health

Women's pelvises are shrinking – how is that changing 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

A newly identified brain circuit in mice may explain why we sleep longer and deeper after being sleep deprived – and lead to new treatments for sleep conditions

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Health

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

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Health

Cold sore virus immediately reshapes our genome to boost its growth

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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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