Today, we focus on the brain. A new study looks at what is happening in your brain when there is a word “on the tip of your tongue” and researchers discover the brain cells that tell you when to stop eating. Plus, on This Day in History, we look at the first vacuum cleaner.

What happens in your brain when there’s a word ‘on the tip of the tongue’? | ZME Science

Researchers discover the brain cells that tell you to stop eating | ScienceDaily

Hubert Cecil Booth: British engineer revolutionised cleaning by sucking up dust with his mouth | The Independent | The Independent

Hubert Cecil Booth: biography and inventions - science - 2025

Made up in Britain: Vacuum cleaner : Hubert Cecil Booth 1901

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