Breathing for Health
Breathing techniques, such as the 4-7-8 method, can significantly lower blood pressure and enhance relaxation. The connection between breath and heart rate is profound, with extended exhales promoting a calming parasympathetic response. Additionally, increased heart rate variability, achieved through mindful breathing, is linked to better overall health and well-being.In this clip
From this podcast

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James Nestor - The Art and Science of Breath
Related Questions
Does a simple inhale and a longer exhale qualify as a breathwork practice? I remember it being discussed as useful to improve heart rate variability.
What does increasing heart rate variability do in relation to a slow exhale, as explained by Andrew Huberman in the episode "How to Breathe Correctly for Optimal Health, Mood, Learning & Performance | Huberman Lab Podcast" and the clip "Breathing and Heart Rate"?
What breathing method where you breathe in for a specific amount of seconds, hold, and exhale for a specific amount of seconds as discussed in the episode Encore - James Nestor - The Art and Science of Breath and the clip Breath and Heart Connection?