Why Pure Oxygen Will Kill You, But The Oxygen In The Air Won’t
Science ABC
Feb 15, 2024 11:01
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We need oxygen to survive — but breathing 100% pure oxygen would actually kill you within days. How is that possible? In this video, we explain the science of oxygen toxicity (hyperoxia), how free radicals destroy your cells, and why the 78% nitrogen in our air is just as important as the 21% oxygen.
Learn how hemoglobin carries oxygen, what reactive oxygen species (ROS) do to your body, why your lungs would collapse without nitrogen, and how partial pressure keeps your lungs inflated like spongy balloons.
📚 Topics Covered:
- What we actually breathe: 78% nitrogen, 21% oxygen
- How hemoglobin transports oxygen in the blood
- Cellular respiration and free radicals (ROS)
- How antioxidants protect your cells
- What happens when you breathe pure O2
- Oxygen toxicity: lungs and nervous system damage
- Nitrogen's crucial role in keeping lungs inflated
- Partial pressure and lung collapse
⏱️ Timestamps:
Disclaimer:
* This video is for educational purposes only.
* Ventilators are lifesaving, and doctors monitor patients carefully.
* We're discussing what could happen if a healthy person hypothetically only breathes 100% oxygen.
👉 Watch Next:
▶ What Happens if You DON'T Pull The Oxygen Mask in Planes — https://www.youtube.com/watch?v=4mfP_abOx1w
▶ Cellular Respiration: How Do Cells Get Energy? — https://www.youtube.com/watch?v=JagPP3MX5ks
▶ How Do Astronauts Get Breathable Oxygen In Space? — https://www.youtube.com/watch?v=I_cOqxZqjFU
#oxygen #oxygentoxicity #hyperoxia #freeradicals #biology #science #scienceabc
References:
https://scied.ucar.edu/learning-zone/air-quality/whats-in-the-air
https://www.msdmanuals.com/home/lung-and-airway-disorders/biology-of-the-lungs-and-airways/exchanging-oxygen-and-carbon-dioxide
https://www.bronchiectasisandntminitiative.org/Learn-More/I-am-a-Patient-or-Caregiver/Oxygen-Therapy
https://www.nature.com/articles/pr2009174
https://myhealth.ucsd.edu/RelatedItems/3,90904
https://www.ncbi.nlm.nih.gov/books/NBK430743/
https://www.ncbi.nlm.nih.gov/books/NBK507711/
Music Credits:
Mysterious Story by Purpleplanet https://elements.envato.com/mysterious-story-MVK3XZG
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Voice Over Artist: John Staughton ( https://www.fiverr.com/jswildwood )
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Science & Technology
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