UK blood shortage: NHS Dr Farrukh Shah explains what’s caused the supply issue. James Webb Space Telescope reveals image of what looks like a ‘human fingerprint’. Scientists in America say brain tissue they tested in a new host ‘integrated and grew’. They believe the technique could be an entirely new way to study brain disorders such as autism. In this episode:

• Protecting our nature: RSPB explains why it’s putting pressure on the government.
• Can dementia be detected nine years ahead of diagnosis?
• A Polypill could ‘avoid millions of premature deaths, heart attacks and strokes’
• Lab-grown brain cells learn to play video game Pong
• How digital assistants are perceived as human

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