Can Breathing Lower Blood Pressure?
My Personal Journey With Breath, Heart Health, and Recovery
A few years ago, I was asked to participate in a study through Mayo Clinic.
The reason was simple.
I had received the maximum lifetime dose of a chemotherapy drug called Adriamycin (doxorubicin), a powerful treatment that has helped save countless lives but is also known to increase the risk of heart disease and heart failure later in life.
Researchers were beginning to notice that some cancer survivors who had received high doses of this medication were developing cardiovascular issues years—even decades—after treatment.
I met the criteria for the study.
At the time, I declined.
After years of navigating cancer treatment and its long-term effects, including radiation-induced complications and other chronic health challenges, I was exhausted by the medical system.
Still, the conversation stayed with me.
If my heart was potentially at risk, what could I do about it?
I was already exercising regularly. I was active. I lifted weights. I stayed in good physical condition.
Yet my blood pressure wasn't where I wanted it to be.
That was when I began taking my breathing practice more seriously.
What I discovered changed my life.
Breathing Is More Than Oxygen
Most people think breathing is simply about getting oxygen into the body.
It's much more than that.
Every breath influences:
Heart rate
Blood pressure
Nervous system activity
Circulation
Carbon dioxide balance
Stress resilience
The breath acts as a bridge between the conscious and unconscious parts of the body.
You can consciously change your breathing, and in doing so, influence systems that normally operate automatically.
This is one of the reasons breathing is such a powerful therapeutic tool.
What I Noticed
As I practiced slow, controlled nasal breathing each day, I began paying attention to how my body responded.
I noticed:
My heart rate slowed.
My body felt calmer.
My mind became quieter.
My blood pressure gradually improved.
Perhaps most importantly, I started feeling like my heart wasn't working as hard.
The less air I needed, the less effort my system seemed to require.
Over time, my breathing became slower, lighter, and more subtle.
My resting heart rate dropped.
My blood pressure normalized.
And despite concerns about the long-term effects of chemotherapy, my cardiovascular health remained strong.
What The Research Shows
Research supports what many breath practitioners have experienced firsthand.
Studies have shown that practicing slow breathing for as little as 15 minutes per day can significantly reduce blood pressure.
Some participants experienced reductions of up to 10 points in systolic blood pressure.
That's a remarkable change from something that costs nothing and requires no equipment.
The reason is simple.
Your breath directly influences your nervous system.
And your nervous system directly influences your cardiovascular system.
Why Slow Breathing Helps
1. It Activates The Parasympathetic Nervous System
Slow breathing signals safety to the brain.
As the body shifts out of a stress response, heart rate slows and blood vessels relax.
This naturally lowers blood pressure.
2. It Improves Heart Rate Variability
Heart Rate Variability (HRV) is a measure of how adaptable and resilient your nervous system is.
Slow breathing improves HRV, which is associated with better cardiovascular health and greater resilience to stress.
3. It Increases Carbon Dioxide Tolerance
Most people focus entirely on oxygen.
But carbon dioxide plays a critical role in oxygen delivery.
When we breathe excessively, we lose too much CO₂.
Learning to breathe less helps improve circulation and allows oxygen to be released more effectively into tissues.
4. It Reduces The Workload On The Heart
Rapid breathing creates unnecessary stress throughout the system.
Slow, efficient breathing allows the heart to work more economically.
The body becomes more efficient.
Less effort.
Less strain.
More resilience.
Why I Teach Nose Breathing
One lesson I learned through my own journey is that how you breathe matters.
I started with practices like the Wim Hof Method, which introduced me to the power of breathwork.
For that, I will always be grateful.
But over time, I became convinced that the nose should remain our primary breathing apparatus.
The nose:
Filters air
Warms air
Humidifies air
Produces nitric oxide
Creates optimal breathing pressure
Helps regulate breathing volume
Nasal breathing naturally slows the breath and encourages efficiency.
It is one of the simplest and most profound health practices available.
Start Here
You don't need an advanced breathing practice.
You don't need complicated techniques.
You simply need to begin.
For the next week:
Sit comfortably for 10–15 minutes.
Breathe only through your nose.
Allow the breath to become:
Slower
Softer
Quieter
Don't force it.
Simply observe.
Over time, you'll notice something remarkable.
Your body begins asking for less air.
Your mind becomes quieter.
Your heart works less.
And your entire system begins moving toward balance.
Final Thoughts
When I was asked to join a study because of potential future heart disease, I never imagined that breathing would become one of my most valuable tools for protecting my health.
Yet here I am today.
The older I get, the more convinced I become that breathing is one of the foundations of longevity, vitality, and resilience.
The breath is always available.
It costs nothing.
And sometimes the simplest tools are the most powerful.
Breathe less.
Breathe through your nose.
Trust the process.
