Studies have found that using a mobile phone for long hours can lower HRV levels.

研究发现，长时间使用手机会导致HRV水平降低。

HRV readings can change depending on if the user is a man or woman, and what their body shape and health conditions are.

HRV读数可根据使用者的两性特征，以及他们的体型和健康状况而变化。

Users wear it on their arm. The device has a sensor that measures hemoglobin oxygen levels and changes to the heart rate called HRV.

用户需要将它戴在手臂上。该设备附带的传感器可测量血红蛋白氧水平和心率变异性（HRV）。

The Nettox device makes a sound when HRV and blood oxygen levels fall, which reminds wearers to stop using their phones.

当HRV和血氧水平下降时，Nettox设备会发出警示，提醒用户停止使用手机。

Honda's HRV, for example, is the sibling of that discontinued Honda Fit.

例如，本田HR-V就那款已停产的本田飞度的姊妹车型。

Your cortisol drops, your HRV improves, your blood vessels dilate, so it really does When you are laughing, it puts your body into a recovery state.

你的皮质醇水平下降， 心率变异性提高，血管扩张， 所以当你笑的时候，身体确实了恢复状态。

You got to have the cardio, you got to have the, you know, the HRV, like all that stuff has to be good.

你必须有良好的心肺耐力，必须保持心率变异性（HRV）等指标在理想状态，所有这些方面都必须达到良好标准。

HRV, heart rate variability, has made its way finally into the forefront of exercise physiology and even into the popular discussion.

心率变异性 (HRV) 最了运动生理学的前沿领域，甚至成为了热门话题。

So that's where my brain went, okay, I just need to do things and track what markedly changes my HRV.

于我的思路转向了这里， 好吧，我只需采取行动并追踪哪些因素显著改变了我的HRV。

Like have you seen that typically play out with like HRV scores or things like that.

像HRV得分这类指标，你通常看到它怎么变化的吗？

And so what I started to see is the quality of water and how much I was drinking, HRV, it's the biggest.

于我开始注意到水质和我喝了多少水，这对HRV的影响最大的。

And the basis of all of the practices I teach is actually rooted in what will impact your heart rate variability, or your HRV.

我教授的所有实践方法的基础， 实际上都植根于那些能够影响你的心率变异性，即HRV的因素。

So the HRV tracks your autonomic nervous system, which is made up of your sympathetic and your parasympathetic nervous systems.

因此，心率变异性（HRV）监测的你的自主神经系统，该系统由交感神经系统和副交感神经系统组成。

It's the biggest improvement in most people's HRV, is adding electrolytes to your water.

在大多数人中，HRV最大的改善来自于在水中添加电解质。

So I was wearing the whoop while writing the book, and I was starting to notice my HRV change in these really small incremental ways.

所以在写书的时候我一直戴着Whoop设备，开始注意到我的HRV以非常细微的方式逐渐发生变化。

Whereas if I've done a proper like HRV assessment, not using an aura ring or a whoop I've done, I've actually had a proper electrodes placed onto me to truly assess my HRV.

而如果我做了正规的心率变异性评估，不使用光环戒指或Whoop设备，而真正将电极贴到我身上来准确评估我的心率变异性。

Because I had a really, really low HRV.

因为我当时的HRV数值真的非常低。