NOVA

How Cannabis Affects Teens' Brains

To understand the effects cannabis has on the function and development of adolescents' brains, a clinical psychologist performs brain scans on teenagers that use the drug and those that don't.

How Cannabis Affects Teens' Brains

3m 28s

  • A.I. Revolution: asset-mezzanine-16x9

    A.I. Revolution

    S51 E5 - 53m 30s

    A.I. tools like ChatGPT seem to think, speak, and create like humans. But what are they really doing? From cancer cures to Terminator-style takeovers, leading experts explore what A.I. can – and can’t – do today, and what lies ahead.

  • Hunt for the Oldest DNA: asset-mezzanine-16x9

    Hunt for the Oldest DNA

    S51 E4 - 53m 10s

    For decades, scientists have tried to unlock the secrets of ancient DNA. Follow the dramatic quest to recover DNA millions of years old and reveal a lost world from before the last Ice Age.

  • Building the Eiffel Tower: asset-mezzanine-16x9

    Building the Eiffel Tower

    S51 E3 - 53m 29s

    Explore the revolutionary engineering behind Paris’s iconic landmark. Completed in 1889, the iron tower smashed the record for the tallest structure on Earth, ushering in a new age of global construction that reached for the skies.

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