brandonb

28 ms·

691.
by brandonb 1y ago
#1 is a great idea for follow-up -- looking at variance, 90th percentile vs median, and so on. There's probably some very salient measure of sleep-affecting noise that we can derive from the data. On the accuracy of sleep metrics, when
692.
by brandonb 1y ago
This is an interesting hypotheses—I think we could test it by looking at intra-night variance in noise. I’ll try to do a follow up!
693.
by brandonb 1y ago
This was ambient noise in the room, as measured by an Apple Watch. So “random,” real world noises that pop up, as opposed to a controlled level of white noise.
694.
The Effect of Noise on Sleep(empirical.health)
152 points by brandonb 1y ago|195 comments
695.
by brandonb 1y ago
I worked on the first study to detect afib with an Apple Watch (plus a deep neural network): https://jamanetwork.com/journals/jamacardiology/fullarticle/... These watches have come a long way, from simple opt
696.
by brandonb 1y ago
Most smartwatches have two heart rate sensors: ECG (electrocardiogram) and PPG (optical heart rate sensor). In the US, ECGs are regulated by the FDA as a class II medical device. So anything sold on the market has gone through reasonable ac
697.
Lp(a) blood test shows 114% higher heart attack risk(empirical.health)
1 points by brandonb 1y ago|0 comments
698.
The Catch in Catching Cancer Early(newyorker.com)
3 points by brandonb 1y ago|1 comments
699.
by brandonb 1y ago
Note that these results were measured on the third generation heart rate sensor (basically, 2020 models or later, minus the SE series).
700.
by brandonb 1y ago
This is written by a former deputy CTO of the US, who helped start Code for America and the US Digital Service. I think it's a pretty good explanation from an insider on what to focus on, if somebody tries USDS/DOGE/etc for a
701.
Apple Watch's heart rate monitor is accurate to 5bpm 89-98% of the time(empirical.health)
4 points by brandonb 1y ago|2 comments
702.
What Doge Didn't Do(eatingpolicy.com)
5 points by brandonb 1y ago|1 comments
703.
Biomarker-driven nutrition: going beyond generic diet advice(empirical.health)
3 points by brandonb 1y ago|0 comments
704.
Challenges for Artificial Intelligence in Medicine(oreilly.com)
2 points by brandonb 1y ago|0 comments
705.
Marijuana's Links to Heart Attack and Stroke Are Becoming Clearer(nytimes.com)
4 points by brandonb 1y ago|0 comments
706.
by brandonb 1y ago
This is cool! Have you considered adding micronutrients like sodium, potassium, or fiber? And breaking out saturated vs unsaturated fat? I ask because those are key drivers of blood pressure and cholesterol. Macros alone don't quite gi
707.
The science behind predicting heart attack risk(empirical.health)
1 points by brandonb 1y ago|0 comments
708.
Each 10 mg/dL drop in ApoB cuts heart disease risk by 9%(empirical.health)
4 points by brandonb 1y ago|0 comments
709.
by brandonb 1y ago
First off, sorry about the unsubscribe links--I reproduced the problem, and we're fixing it. We're working on getting API access from our lab partner that would let us build a self-serve lab location finder. We know it's a bi
710.
SUS backprop: linear backpropagation algorithm for long inputs in transformers(arxiv.org)
9 points by brandonb 1y ago|0 comments
711.
by brandonb 1y ago
We follow HIPAA (the US privacy law for health data). And we take the security precautions I think you'd expect -- encryption in transit and at rest, MFA, running service accounts under least privilege, everything is in a VPC, dedicate
712.
by brandonb 1y ago
Sure. I'll try to group my answers by theme since some of the answers to your questions overlap. First, the data is never anonymized and sold (if that's what you mean by "business development"). We follow HIPAA, since we
713.
by brandonb 1y ago
(OP here) Let me know if folks have questions!
714.
Don't Die of Heart Disease(empirical.health)
25 points by brandonb 1y ago|8 comments
715.
Lp(a) particles are 6x more atherogenic than ordinary LDL(empirical.health)
2 points by brandonb 1y ago|0 comments
716.
Using a 'Tiny Bit of Math' May Improve Your Heart Health, Study Suggests(nytimes.com)
7 points by brandonb 1y ago|0 comments
717.
by brandonb 1y ago
Likewise, he quotes oxygen measurements of 88% to 97% -- the FDA standard is that 95% of SpO2 values fall within 4 to 6% of the true reading. So this type of variation is expected and part of why you should look at trends rather than indivi
718.
by brandonb 1y ago
Not now, but future Apple Watches are rumored to track blood pressure through analysis of pulse transit time: https://www.empirical.health/blog/apple-watch-blood-pressure...
719.
by brandonb 2y ago
Congratulations!
720.
Estimating VO2Max with deep learning and physiological ODEs(empirical.health)
1 points by brandonb 2y ago|0 comments

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