#8 - No Cuff, No Problem? The Future of Blood Pressure Monitoring

Code & Cure

What if checking your blood pressure was as easy as glancing at your watch? High blood pressure quietly affects nearly half of all Americans—yet it's one of the most preventable causes of strokes, heart attacks, and other serious health problems. The catch? Traditional monitoring methods are clunky, inconvenient, and rarely used outside the clinic.

In this episode, we explore how next-gen technologies are transforming blood pressure tracking. From smartwatches and rings to toilet seats and even facial recognition, wearable devices are pushing the boundaries of what's possible—no cuffs required. You’ll learn how sensors using light (PPG), electrical signals, and video can estimate blood pressure in real time, offering the promise of continuous, hassle-free monitoring.

But as with any innovation, there are hurdles. We dive into critical challenges like calibration complexity, variable accuracy across users and activities, and whether these tools truly improve hypertension management or simply add more data noise. The role of artificial intelligence adds another layer—enhancing insights, but also raising new questions about equity, access, and interpretation.

Is convenience enough to spark a shift in how we manage cardiovascular health? Or do these tools need to prove more than novelty to become essential?

Tune in for a forward-looking conversation on the promise, the pitfalls, and the future of blood pressure technology—where innovation meets one of medicine’s most familiar numbers.

References:

Emerging sensing and modeling technologies for wearable and cuffless blood pressure monitoring
Lei Zhao, Cunman Liang, Yan Huang, Guodong Zhou, Yiqun Xiao, Nan Ji, Yuan‑Ting Zhang, Ni Zhao et al.
Nature, Digital Medicine, May 2023

Cuffless Blood Pressure Measurement Devices – International Perspectives on Accuracy and Clinical Use: A Narrative Review
Eugene Yang, Aletta E. Schutte, George Stergiou, Fernando Stuardo Wyss, Yvonne Commodore‑Mensah, Augustine Odili, Ian Kronish, Hae‑Young Lee, Daichi Shimbo
JAMA Cardiology, June 2025

Credits:

Theme music: Nowhere Land, Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

บท

1. Introducing Photoplethysmography (PPG) (00:00:00)

2. Understanding Blood Pressure Basics (00:01:20)

3. High Blood Pressure Risks (00:03:40)

4. Traditional vs. Cuffless Monitoring (00:06:09)

5. Technologies Behind Cuffless Measurements (00:13:00)

6. Calibration Challenges (00:18:26)

7. Data Interpretation and Access Issues (00:21:40)

8. Key Takeaways and Future Outlook (00:23:29)