# Why is lead so dangerous to humans?

- Institution: TED
- Department: TED-Ed
- Speaker: Gerald Markowitz and David Rosner
- Year: 2025
- Level: For everyone
- Language: English
- Subjects: Biology, Medicine and health, History, Teaching and learning
- Source: [TED](https://www.ted.com/talks/gerald_markowitz_and_david_rosner_why_is_lead_so_dangerous_to_humans)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Lead is a metallic element that’s distributed across Earth’s crust. When it enters the human body, it can disrupt many critical processes that span various systems, producing a diverse set of symptoms. So, just how bad is lead for human health? And if it’s really that dangerous, how did it get into so many products? Gerald Markowitz and David Rosner dig into the lethal history of lead. \[Directed by Tim Rauch, narrated by Christina Greer, music by Salil Bhayani, cAMP Studio\].

## Lectures

1. [Why is lead so dangerous to humans?](https://invisiblenetwork.ai/learn/ted/gerald_markowitz_and_david_rosner_why_is_lead_so_dangerous_to_humans/65fd662e127e), 5 min (TED's player)