– If humans breathe in oxygen and exhale CO2, then why does mouth-to-mouth resuscitation work?

Question

– If humans breathe in oxygen and exhale CO2, then why does mouth-to-mouth resuscitation work?

In: 172

Answer 1

There are other gasses in the air. Also, your body doesn’t absorb 100% of the oxygen, and it doesn’t expel 100% CO2. What it expels is still better to have in someone’s lungs as opposed to them not breathing