Hold Your Breath for 13 seconds?? – Breathe Well Review

reasons I cannot fathom, this breath would have you hold your breath for 13 to 20 seconds in between short 3-6 second) inhalation and exhalation. if you're training to hold your breath for deep-sea diving, perhaps that's helpful. If you're trying to modulate your heart rate and relax, it's rather insane (and unhealthy) to hold your breath for that length of time. Relaxation is good, but oxygen deprivation is not. This app is counterproductive it best, dangerous at worst.
Review by Sneaky Little Devil on Breathe Well.