Plants and trees may seem pretty passive, but behind the scenes, their cells are working hard to put on a magic show. In this episode of Crash Course Botany, we’ll explore how the processes of ...

Breathing is supposed to be a no-brainer, but a lot of us are doing it wrong ...

Under normal circumstances, breathing is automatic, mostly unnoticed, and largely silent. We hardly notice it... that is until something goes wrong. And last year, after finishing my new book, ...

You arrive for a difficulty-breathing emergency. The patient is alert and oriented and complaining of difficulty breathing. The patient appears to be mildly distressed and slightly anxious, but vitals ...

As newborns, we enter the world by inhaling. In leaving, we exhale. (In fact, in many languages the word “exhale” is synonymous with “dying.”) Breathing is so central to life that it is no wonder ...

Agonal breathing is when someone who is not getting enough oxygen is gasping for air. It is usually due to cardiac arrest or stroke. It's not true breathing. It's a natural reflex that happens when ...