Getting rid of wonky mitochondria would reduce free-radical production and might thus slow down ageing.

ECONOMIST: Exercise and longevity

In the late 1980s Floyd injected gerbils with a free-radical-trapping compound called phenylbutyl nitrone just before inducing a stroke.

FORBES: Brain Repair

Previous studies have suggested that both inflammation and free-radical damage may play a role in the onset of Alzheimer's and Parkinson's disease.

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But sipping a wine made by a free-thinking, radical American winemaker is definitely appropriate.

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Much of the brain damage suffered during a stroke is caused by the release of so-called "free radical" molecules.

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New Democracy (ND) wants to stick to the fiscal limits agreed with Brussels but unleash a radical, free-market reform onto the economy: privatising faster, possibly introducing a flat tax to free up small businesses.

BBC: Struggling Greeks losing belief in the state

He implemented a radical programme of free-market reforms, removing subsidies, privatising state-owned companies and reducing the role of the state in almost all spheres of the economy.

BBC: Alberto Fujimori in file photo from 1999

Thatcher responded with radical reforms, shaped by the ideas of free-market economists Friedrich Hayek and Milton Friedman on minimizing government control and allowing markets free rein in deciding the shape of the economy.

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But the Radical party leader is Raul Alfonsin, a former president who is more critical of free-market policies than is Mr de la Rua.

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