Science thought this was impossible.
As you can see, you can raise your heart beat or lower it with simple breathing techniques. This is proof that you can control your Autonomic Nervous System (ANS)
Parasympathetic (PNS) – Sympathetic (SNS)
Stimulated By Exhalation Inhalation
Effect on the Body Relaxation/Healing Adrenaline/Energy
Although it is impossible to turn one or the other completely off, we can put more emphasis in one of them. Since we know that when we inhale we activate Adrenaline and when we exhale we activate relaxation and healing, then by EXTENDING OUR EXHALES we are naturally stimulating Healing and Reparation (Parasympathetic Nervous System).