What is Atrial fibrillation (AFib)?
Irregular, often rapid heart rhythm where the upper chambers beat out of sync with the lower chambers.

top quivers · bottom beats unevenly
Which statement fits Atrial fibrillation (AFib)?
Answer it in your own words in the app.
In real work
Your clinician reviews AFib history before adjusting anticoagulation therapy.
In the illustration
The cam's link slips: the upper bellows stop squeezing and only quiver in tiny fast flutters, and the lower bellows pump at uneven gaps (0.6 s, 1.1 s, 0.4 s).
Explain in plain words what Atrial fibrillation (AFib) means in your health app, what the watch can and cannot tell me about it, and three questions to bring to my clinician.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.





