Heart coherence is a breathing practice that’s getting more and more popular to relax, reset your mind, and reconnect with your breath. It’s a powerful tool for stress management, so much so that it can really help you unwind before a race. It’s also a great way to shift gears after a draining day and find the motivation to get out for a run.
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Heart coherence, what is it?
Heart coherence is a simple breathing exercise built around: 5 seconds of inhaling, 5 seconds of exhaling, for 5 minutes. That means each breathing cycle lasts 10 seconds, which equals 6 breaths per minute.
It’s often summed up with the 365 rule: 3 times a day, 6 breaths per minute, for 5 minutes.
It’s best done sitting on a chair with your back straight, or lying down. Heart coherence helps you become aware of your breathing and regulate stress. You inhale through your nose and exhale through your mouth. Aim for belly breathing: your abdomen expands as you inhale and gently falls as you exhale.
How does heart coherence work?
Your body relies on the somatic nervous system (voluntary actions) and the autonomic nervous system (automatic regulation), which itself is split into two branches: the sympathetic and parasympathetic systems. The sympathetic system triggers the “fight or flight” response and ramps up heart rate and breathing. The parasympathetic system supports rest, recovery, and relaxation.
You need a balance between the sympathetic and parasympathetic systems, and stress often throws that balance off. Inhaling tends to stimulate the sympathetic system, while exhaling supports the parasympathetic system. That’s why longer, controlled exhales are often recommended when you want to calm down.
Breathing in 10-second cycles matches a respiratory rate that resonates with key biological rhythms in the human body. This may help improve heart rate variability, a useful marker of overall health, training readiness, and recovery.
What are the benefits of heart coherence?
The effects can last longer or shorter depending on how often and how consistently you practice. People commonly notice improved heart rate variability and lower stress levels. There are also benefits for blood pressure and neurotransmitters, better regulation of inflammation-related issues, and sharper focus. In short, it’s good for your body, your heart, and your brain.
What about running?
For running, heart coherence can be especially useful at night to relax before sleep, the day before a race, or on race morning when nerves kick in. In just a few minutes, it helps you come back to yourself and feel more grounded. You can also use it to build better awareness of your breathing, because breath control is a key performance skill in endurance sports like running, trail running, and marathon training.
In practice, how do you count your breathing cycles?
You can use your watch, but ideally you can listen to a heart coherence video on YouTube or use a meditation app. With a bit of practice, you’ll rely on these tools less and less. Your breathing becomes deeper over time, and you can do it anywhere: at your desk, on public transport, in the locker room, or at home.
There are no contraindications, so when are you going to try it?