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Four in, eight out — the simplest way to spend twice as long in the calming half of the breath.
The science behind extended exhale breathing is elegantly simple: when you inhale, your heart rate naturally speeds up; when you exhale, it slows down. This is called respiratory sinus arrhythmia, and it is mediated by the vagus nerve. By making your exhale significantly longer than your inhale, you spend more of each breath cycle in the "slow down" phase, powerfully tilting your nervous system toward rest and recovery. This 1:2 ratio has been shown in research to increase vagal tone, lower cortisol, reduce blood pressure, and improve sleep onset latency.
Research shows a 1:2 inhale-to-exhale ratio maximizes vagal tone and heart rate variability.
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Inhale for 4 seconds, then long exhale for 8. 25 rounds take about 5 minutes.
Sleep. Exhale twice as long as you inhale — activates the vagus nerve for deep relaxation.
Research shows a 1:2 inhale-to-exhale ratio maximizes vagal tone and heart rate variability.
One full session as timed here is about 5 minutes (25 rounds).
The science behind extended exhale breathing is elegantly simple: when you inhale, your heart rate naturally speeds up; when you exhale, it slows down. This is called respiratory sinus arrhythmia, and it is mediated by the vagus nerve. By making your exhale significantly longer than your inhale, you spend more of each breath cycle in the "slow down" phase, powerfully tilting your nervous system toward rest and recovery. This 1:2 ratio has been shown in research to increase vagal tone, lower cortisol, reduce blood pressure, and improve sleep onset latency.
This is a low-intensity technique and safe for most people, but: