Photoplethysmography in a minute (and a bit)

An introduction to photoplethysmography, in a minute (and a bit), covering:

• use in clinical devices such as pulse oximeters
• use in wearables such as smartwatches and fitness trackers
• potential applications, such as detecting atrial fibrillation, assessing cardiovascular health, and monitoring breathing.

Accompanying video available at: https://youtu.be/HnXDvN4WNX8