How breathing works

A short 'lesson' based on a TED-talk on how breathing works. WATCH the video and then click on THINK to carry out the short quiz to check your understanding. Click on DIG DEEPER for further information.

Κάντε κλικ στον σύνδεσμο https://ed.ted.com/lessons/how-breathing-works-nirvair-kaur#watch για να ανοίξετε τον πόρο.