Welcome to the Longevity Blueprint.
I'm Dr.
Linda Friedland,
And I'm so happy to be sharing some valuable ideas with you.
HIV has become one of the most talked about numbers in health right now.
It is on your watch,
Your app,
Maybe your ring,
Sitting there each morning like a little verdict on how you slept.
But here is what most people never get told.
It is also one of the numbers on that screen you can change on purpose in real time.
We can do it in the next two minutes.
In the last video,
I described HIV as a window onto your vagal nerve,
As a vagal break.
The calming branch of your nervous system.
That eases your heart rate down every time you breathe out.
Today I actually want to use that break.
If you're wearing any wearable,
Anything with a heart rate sensor,
Here's the mechanism working underneath it.
Breathe in.
And a reflex called respiratory sinus arrhythmia nudges your heart rate up slightly.
Breathe out.
And your vagus nerve pulls it back down.
It is a genuine conversation between your lungs and your heart happening within every single breath,
All day,
Whether you notice it or not.
Most of us breathe somewhere between 12 and 18 times each minute,
Which is fine and healthy.
But in that time,
The heart barely gets the message before the next breath interrupts it.
Slow that down to around six breaths a minute,
Roughly five seconds in,
Five seconds out,
And something almost mechanical happens.
Your heart rate and your breath fall into step.
Instead of small choppy fluctuations,
You get one long smooth wave,
Heart rate climbing on the in-breath and falling on the out-breath,
Like a swing finding its natural rhythm.
This is called resonance breathing.
And at this pace,
You produce the largest voluntary swing in heart rate that the body is capable of.
That swing is quite literally what your HRV,
Your heart rate variability is measuring.
You're not fooling your device.
You're not gaming the algorithm.
You're deliberately switching on the exact mechanism your body uses naturally when it feels safe and unhurried.
Let's try it.
If you have a device that shows real-time heart rate,
Glance at it now.
You may actually look at your heart rate you may actually Watch this happen.
Breathe in slowly through your nose for a count of five.
One,
Two,
Three,
Four,
Five,
And out gently for a count of five.
And again.
In for the count of five.
One,
Two,
Three,
Four,
Five.
And breathe out for the count of five.
Two,
Three,
Four,
Five.
Continue this breathing in for the count of five.
Five in,
Five out for the next few minutes.
In for the count of 5.
Out for the count of five.
That is 10 seconds.
And if you do that six times,
That's one minute.
This is called resonance breathing.
End for the count of five,
You can close your eyes.
Aft for the count of five.
In 2,
3,
4,
5 Out 2,
3,
4,
5 in,
Two,
Three,
Four,
Five.
Art 2345 If you have a device on Apple Watch or Garmin.
You can look at what your heart rate just did.
And more importantly,
Notice too,
Whatever shifted in how you feel.
That small settling that happens when you meditate and when you breathe and when we did this resonance breathing is the vagal break.
Your vagus nerve engaging on command.
Now three honest things to share with you.
Because I don't want to oversell this.
These two minutes of measurements,
These two minutes of breathing.
Won't move tomorrow morning's HRV score.
You've just changed your state,
Not your baseline.
What shifts your baseline over time is doing this kind of practice regularly alongside good sleep,
Alongside movement.
And however you're managing the rest of your life.
You don't need any device at all for this to work.
The ring or the watch is a mirror showing you something already happening in your body.
If you take it off.
The mechanism still runs exactly the same.
And if you check your HRV,
Your heart rate variability daily,
Here's the shift I'd suggest.
Use the morning number to notice patterns over weeks.
Use your breath.
Like we just practiced whenever you want to change how you feel.
Right now,
Tonight,
Before you walk into a tough meeting,
That's really the distinction worth keeping.
HIV measures.
Your breath is the tool.
From me,
Dr.
Linda Friedland,
Age boldly,
Live well.
And in the last of the trilogy of HRV Talks,
We will explore what HRV tells you about fitness,
Readiness,
And longevity.
