4 ms·

There are a few devices that are cleared for cufflessly measuring bp, but that’s only been in the past few years. Anything worn on the wrist is going to be sen

There are a few devices that are cleared for cufflessly measuring bp, but that’s only been in the past few years. Anything worn on the wrist is going to be sensitive to noise either from motion or from varying amounts of light getting to the ppg sensor. It’s not a game changer yet. Partly because of those problems, partly because there aren’t established norms for what to do with more bp data. All that’s getting better though, I think it’ll make a difference in the next 5-10y.

ghaff 3y ago
I'm sure it varies a lot during the day. Have you had your coffee and how much? Have you taken your BP medication yet? Have you exercised? Did you just have a really annoying phone call? Some of those real-time results might be interesting. Maybe you could cut back on the coffee a little. But there's also a natural variance because life over the course of a day or weeks that many of us would just as soon ignore and instead prefer to monitor accurately over comparatively long time intervals (week+) with at least an attempt to measure under comparable conditions. (And even then I find a fair bit of variance.) That's a general issue I have with "quantified self" info. It's either something I know. (I didn't sleep well last night for whatever reason or I was at a desk or in a plane seat all day.) Or it's something I mostly can't or won't do much about.
- civilitty 3y ago
  Even the cuffs often recommend sitting calmly for fifteen minutes before taking a measurement. BP fluctuates a lot.
- Ldorigo 3y ago
  I love all these new noninvasive QS gadgets, but for me the problem will always remain that to find meaningful/useful correlations, you always need to input a lot of data manually (in your example:"I just drank a coffee".) Until that's solved, and I don't see how it could be, they will remain mostly useless toys to me (who am utterly lacking the discipline to enter data reliably enough for statistical analysis).
  - adolph 3y ago
    I just started logging my coffee by putting an NFC chip by the coffee sources. I press my phone to it, select type and volume. I was shocked at how easy it was to set up.
- camel_gopher 3y ago
  Measure once per day at the same time under the same conditions.
  - ghaff 3y ago
    I certainly don't consistently have the same conditions.
    - deleted 3y ago
      [deleted]

ghaff 3y ago

I'm sure it varies a lot during the day. Have you had your coffee and how much? Have you taken your BP medication yet? Have you exercised? Did you just have a really annoying phone call? Some of those real-time results might be interesting. Maybe you could cut back on the coffee a little. But there's also a natural variance because life over the course of a day or weeks that many of us would just as soon ignore and instead prefer to monitor accurately over comparatively long time intervals (week+) with at least an attempt to measure under comparable conditions. (And even then I find a fair bit of variance.) That's a general issue I have with "quantified self" info. It's either something I know. (I didn't sleep well last night for whatever reason or I was at a desk or in a plane seat all day.) Or it's something I mostly can't or won't do much about.

civilitty 3y ago
Even the cuffs often recommend sitting calmly for fifteen minutes before taking a measurement. BP fluctuates a lot.
Ldorigo 3y ago
I love all these new noninvasive QS gadgets, but for me the problem will always remain that to find meaningful/useful correlations, you always need to input a lot of data manually (in your example:"I just drank a coffee".) Until that's solved, and I don't see how it could be, they will remain mostly useless toys to me (who am utterly lacking the discipline to enter data reliably enough for statistical analysis).
- adolph 3y ago
  I just started logging my coffee by putting an NFC chip by the coffee sources. I press my phone to it, select type and volume. I was shocked at how easy it was to set up.
camel_gopher 3y ago
Measure once per day at the same time under the same conditions.
- ghaff 3y ago
  I certainly don't consistently have the same conditions.
  - deleted 3y ago
    [deleted]