91av

Columnist

Tackling topics from the cutting edge of dark matter research to the latest developments in the tech world, explore the incisive opinions of 91av's expert columnists.

Health

Is stem cell therapy about to transform medicine and reverse ageing?

A clinical trial to reverse age-related vision conditions using stem cell treatment could finally deliver on the promise of a major discovery in ageing and regeneration made 20 years ago, says columnist Graham Lawton

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Mind

Why is it so hard to change your mind?

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Space

The rise, the fall and the rebound of cyclic cosmology

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Humans

Are Neanderthals descendants of modern humans?

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Physics

The stunning physics of Project Hail Mary go back to ancient China

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Mathematics

The man who ruined mathematics

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Physics

How a century-long argument over light’s true nature came to an end

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Health

Iodised salt has become uncool but many of us need to eat more iodine

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Environment

How a DIY worm farm can compost food scraps, paper or a whole kangaroo

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Mind

The best kind of olive oil for brain health

The science suggests that olive oil can help us fight cognitive decline and even Alzheimer’s. Columnist Helen Thomson finds that only works if we choose the right kind

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Physics

How Anthony Leggett pushed the boundaries of quantum physics

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Health

Are humans degenerating genetically and getting dumber as a result?

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Health

A negative attitude towards ageing is making you age faster

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Technology

Social media is a defective product

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