A study suggests that a lack of a specific molecule which is found in the body - called taurine - could be speeding up the ageing process.

Joe Biden says the US is looking to the UK to “lead the effort” on how artificial intelligence is regulated, and weekend heat-health alert is raised to amber in parts of England.

Also in this episode:

• Study suggests that long space missions are damaging astronauts’ brains
• Turbulence is increasing due to climate change
• Octopuses beat the cold by ‘editing genetic material in less than a day’ 
• Instagram could be getting an AI chatbot with multiple personalities
• Whiskers on an elephant’s trunk may help it feel and balance objects 
• Why curly hair might have more benefits than you’re aware of

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