4 ms·

I am fortunate enough to live in a country where we only had a lockdown for about 4 weeks of 2020, and during that time I didn't drink. See if you can see from

I am fortunate enough to live in a country where we only had a lockdown for about 4 weeks of 2020, and during that time I didn't drink. See if you can see from my sleeping heart rate when that was: https://i.imgur.com/7VlYQ67.png https://i.imgur.com/7VlYQ67.png

mannykannot 5y ago
You appear to be demonstrating the opposite of what is claimed here: your heart-rate variability seems to have decreased when you were not drinking alcohol. When I went back to the article to check this, however, I saw that, while the text says that alchohol has "a negative effect on HRV", and their model explains this, the diagram shows alcohol increasing the HRV. As the text's version of the observed results and its explanation for them are consistent, I assume the diagram is incorrectly labelled. Update: Thanks to everyone for correcting me on what HRV means here.
- Jtsummers 5y ago
  That image is of GP's heart rate, not heart rate variability.
- enragedcacti 5y ago
  HRV is not a measure of change in your resting heart rate over time, its a measure of the difference on a per beat basis. Even if your BPM is 60, your heart doesn't beat exactly once a second, it will actually vary in length by some number of milliseconds back and forth. This is what is measured when talking about HRV. It is believed to occur as the parasympathetic and sympathetic nervous system "fight" over raising and lowering the heartrate. The symbiosis between them lands on a steady rate per minute with fluctuations on a per beat basis. https://en.wikipedia.org/wiki/Heart_rate_variability https://en.wikipedia.org/wiki/Heart_rate_variability
- tcskeptic 5y ago
  Heart rate variability really does not mean variability in heart rate (such as is shown on the graph linked) it is more at the 50-100ms level in change in timing between hear beats. The graph does seem to show a reduction in RHR but does not address HRV (as I understand it)

mannykannot 5y ago

You appear to be demonstrating the opposite of what is claimed here: your heart-rate variability seems to have decreased when you were not drinking alcohol. When I went back to the article to check this, however, I saw that, while the text says that alchohol has "a negative effect on HRV", and their model explains this, the diagram shows alcohol increasing the HRV. As the text's version of the observed results and its explanation for them are consistent, I assume the diagram is incorrectly labelled. Update: Thanks to everyone for correcting me on what HRV means here.

Jtsummers 5y ago
That image is of GP's heart rate, not heart rate variability.
enragedcacti 5y ago
HRV is not a measure of change in your resting heart rate over time, its a measure of the difference on a per beat basis. Even if your BPM is 60, your heart doesn't beat exactly once a second, it will actually vary in length by some number of milliseconds back and forth. This is what is measured when talking about HRV. It is believed to occur as the parasympathetic and sympathetic nervous system "fight" over raising and lowering the heartrate. The symbiosis between them lands on a steady rate per minute with fluctuations on a per beat basis. https://en.wikipedia.org/wiki/Heart_rate_variability https://en.wikipedia.org/wiki/Heart_rate_variability
tcskeptic 5y ago
Heart rate variability really does not mean variability in heart rate (such as is shown on the graph linked) it is more at the 50-100ms level in change in timing between hear beats. The graph does seem to show a reduction in RHR but does not address HRV (as I understand it)