Pranayama

Prana - breath/energy/life force 
yama- harness/regulate/control/channel 

Breath is an autonomic function but, with practice, we can harness it’s power to change our energy levels, calm our minds, increase the capacity of our lungs, bring more oxygen supply to the body, & fortify our organs. It often takes a backseat to asana but I believe it should be front and center. I resisted learning it at first because it wasn’t as sensational as learning handstands and wild poses. I was wrong. It’s powerful and life changing. Try it.