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Brain

Mind

How much water do you really need to drink to keep your brain sharp?

Water is essential for good brain function, with a handful of convincing studies suggesting that dehydration could be slowing you down, cognitively speaking. Columnist Helen Thomson explores how much water we should be drinking to stay sharp

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Mind

Depression doesn’t shrink the brain like we thought it did

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A scanning electron micrograph of immune cells called T-cells (green) and a brain cancer cell

Health

Newly discovered immune hubs in our skull may keep our brain healthy

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A close-up of an organoid changing over time, with young cells labelled red, older neurons green and nuclei blue

Mind

5-year-old brain organoids can sense the passing of time

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Health

Postbiotic could reduce the risk of brain damage after a concussion

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A light micrograph showing the neurons of a mouse. The neurons have been labelled with green fluorescent protein to distinguish between cells at different depths within the brain tissue (blue is deepest and green is shallowest)

Mind

‘Remarkable’ discovery upends our understanding of how brains store memories

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Health

Pill that lowers oxygen levels in brain may ease Parkinson’s symptoms

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A 3D diffusion spectral imaging scan of bundles of white matter nerve fibres, parts of neurons called axons

Mind

Most neurons seem to be jacks-of-all-trades, not specialists

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Keith Thomas, who has paralysis, but can now move and feel his hands again thanks to a brain implant

Mind

Neurostimulation restores feeling in paralysed hand for months after

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Health

Game that reduces dementia risk may clear amyloid from men’s brains

Playing a mental speed-training game seems to help the brain clear a protein linked to Alzheimer’s disease in men, but may work in women through different mechanisms

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Mind

How healthy is your brain? We now know how to find out

Features

Mind

Babies are born with the neural foundations for maths

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Health

Fluctuating oestrogen levels may alter how drugs enter women’s brains

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Health

Faecal transplant makes the brains of old mice act young again

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