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Freediver's Breath Control
- Tanya Streeter, a freediver, relies intensely on controlled breathing to supersaturate her body with oxygen before dives.
- Her breath control and physiology are crucial to her ability to dive deep without breathing apparatus.
World Record Dive Dangers
- Tanya recounts a world record dive where overpacking on breath caused blacking out and narcosis at great depth.
- Despite these dangers, her quick thinking saved her and led to breaking the record at 525 feet.
Air Pollution's Hidden Harms
- Air pollution harms more than lungs; it links to brain diseases like Alzheimer's and cognitive decline.
- Pollution disproportionately impacts marginalized communities facing economic and racial inequality.