Hello and welcome to the Intelligence on Economist Radio.

I'm your host, Jason Palmer.

Every weekday we provide a fresh perspective on the events shaping your world.

The long run effects of brain injuries are only just becoming recognized.

One striking association is with crime.

Our correspondent examines how common brain trauma is among those in the criminal justice system

and how commonly that's been overlooked.

And every time a new social media platform starts to get traction,

it's seized upon in places where speech is restricted.

So it goes with a trendy audio app called Clubhouse,

which has become wildly popular far from its Silicon Valley home.

First up though.

Across China, stores of the Swedish fast fashion brand H&M are shutting down.

Their leases rescinded, their presence online scrubbed away.

The company is the latest to get caught in tensions surrounding China's treatment of its Muslim minority weager population.

Last week, a number of Western governments imposed sanctions on Chinese officials

for the alleged abuses in the Xinjiang province.

This package includes four individuals and one entity from China,

who have had an active role in the design and implementation of the Chinese policies in Xinjiang.

In retaliation, China imposed sanctions on Western individuals

and nationalists encouraged Chinese consumers to boycott companies

that are trying to remove Xinjiang cotton from their supply chains.

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