How one hour of slow breathing changed my life - by James Nestor (The Guardian)
For me, the perfect breath is this: inhale for about 5.5 seconds, then exhale for 5.5 seconds. That’s 5.5 breaths a minute for a total of about 5.5 litres of air
It took me years to find out why. Most days, I treat it like a stretch, something I do after a long time sitting or stressing, to bring myself back to normal. By the law of averages, you will take 670m breaths over your lifetime. Maybe you’ve already taken half of those. Maybe you’re on breath 669,000,000. Maybe you’d like to take a few million more.