# 161. Stress Sensing Stickers

- Show: [The Next Byte Podcast](https://hardwarepodcasts.com/podcast/the-next-byte-podcast)
- Published: 2024-02-13
- Length: 25m
- Page: https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers
- Listen: https://the-next-byte-wevolver.simplecast.com/episodes/161-stress-sensing-stickers-0H86j4m9

## Summary

Hosts Daniel and Forbode discuss a flexible, wireless stress-sensing sticker developed by researchers at Caltech that measures nine biomarkers to detect real-time stress. They explain how the device uses inkjet-printed sensors, nickel-doped materials for stability, and machine learning to interpret a 'constellation' of physiological data, overcoming the degradation issues of previous microfluidic prototypes. The hosts highlight the device's potential to complement or replace traditional wearables like the Apple Watch by offering high-fidelity health data in a non-invasive, battery-powered patch.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers#t=0) Introduction and Sponsor Read
- [3:11](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers#t=191) The Complexity of Defining and Measuring Stress
- [9:22](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers#t=562) Caltech's Sensor Architecture and Materials
- [16:10](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers#t=970) Machine Learning and User Testing
- [20:23](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers#t=1223) Device Form Factor and Future Applications

## Topics

- [Sensors & measurement in products](https://hardwarepodcasts.com/topic/sensors)
- [AI & machine learning](https://hardwarepodcasts.com/topic/ai-and-machine-learning)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)

## Most relevant to

makers and hobbyists

## Mentioned

- Caltech (company)
- Apple Watch (product)
- Whoop (product)
- Aura Ring (product)

## Related episodes from other shows

- [168: Put Your Gear on the Ping Pong Table](https://hardwarepodcasts.com/podcast/embedded-fm/2016-09-14-168-put-your-gear-on-the-ping-pong-table) (Embedded.fm)
- [Episode Twenty-Seven: Simon Wanstall](https://hardwarepodcasts.com/podcast/robot-talk/2022-11-25-episode-twenty-seven-simon-wanstall) (Robot Talk)
- [Ep 191: Researchers Parse Starlink, Switches Sense Muscles, and LFT Plays the Commodordion](https://hardwarepodcasts.com/podcast/hackaday-podcast/2022-10-28-ep-191-researchers-parse-starlink-switches-sense-muscles-and-lft-plays-the-commo) (Hackaday Podcast)
- [512: What if I Didn't Stop?](https://hardwarepodcasts.com/podcast/embedded-fm/2025-10-16-512-what-if-i-didnt-stop) (Embedded.fm)
- [65: Resonant Frequency of My Butt](https://hardwarepodcasts.com/podcast/embedded-fm/2014-08-27-65-resonant-frequency-of-my-butt) (Embedded.fm)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2024-02-13-161-stress-sensing-stickers. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to The Next Byte Podcast.