Alcohol and stress levels

Tracking down the effects of alcohol usage

Nov. 15, 2017 - Willem L. Middelkoop

Most wearables (smartwatches, fitness trackers, etc.) use very basic sensors to capture heart rate. Their signal is binary: just counting beats. Biostrap is different, instead of just checking pulses, it captures a high-fidelity PPG waveform. These waveforms are the same kind that doctors use, making me wonder what I could learn from them!

Continue reading

... now you don't - Biostrap wears well and easily goes under your sleeve

Biostrap on the wrist - now you see me...

Recovery after an heavy Thursday night can take up to days

One month of Biostrap health data

On the bottom you can see the two red LED's and the PPG sensor. Just like the Swatch Sistem51 movement this is hidden when worn on wrist

The Biostrap wrist PPG sensor next to a Swatch Sistem 51

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Tagged

Data Design Experiment Lifestyle Heart Review Sensors Sport Watch

Articles (148)

2024-03-24 Half Marathon
2024-03-05 No, I Won't Build That!
2024-02-16 Vision Pro
2024-01-16 Health and fitness data
2023-12-15 Backup Rotation Scheme
2023-11-10 Apple Watch as Phone
2023-11-01 And... there is light!
2023-10-14 Giving AI Training
2023-10-13 Hello, stranger
2023-08-23 The Same, Differently
2023-05-31 Impact of training
2023-05-08 Tablet as Tool
2023-05-03 Using AI to generate code
2023-05-01 Working Offline First
2023-04-20 Tips for Long-Distance Cycling
2023-04-05 Cutting Cloud Costs
2023-02-08 Back to the University
2022-12-22 Rolex DateJust 36
2022-11-01 Moving to the countryside
2022-10-23 MUSE in Carré
2022-09-15 The Ultimate Freedom Bike
2022-09-11 Computer says no
2022-07-30 CAPTCHA Alternative
2022-07-17 Offline Music
2022-04-18 Snake '97 High Scores
2022-01-14 Wearing WHOOP 4.0
2021-12-09 For the love of mini
2021-11-19 Escaping the flat tires
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2020-03-09 Making my own tablet OS
2020-03-03 Monolithic vs Microservices software architecture
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2019-09-10 Fighting backscatter spam at server level
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2019-08-18 Creating a minimal road bike
2019-07-16 Limitations of sleep tracking using a wearable
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2019-06-25 Assembling a cargo bike
2019-06-24 Six months with MCADD
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2018-06-02 Creating a minimal iPhone stand
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2018-04-30 Off the grid: Working on 100% renewable energy
2018-04-18 Outside the comfort zone: amateur acting
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2018-03-07 Tablet as main computer
2018-02-24 Creating the ultimate commuter bike
2018-02-21 Updating Snake '97
2018-01-21 Something the smartwatch will never have: patina
2018-01-08 Lessons from a takeaway plastic bag
2017-12-02 Commuting by bike
2017-11-15 Collecting health data with Biostrap
2017-10-23 From tree to table
2017-09-14 Saving a MacBook Air with exploded battery
2017-09-02 Climbing Mount Etna
2017-08-31 Clouds below my floor
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