I hold my breath as long as I possibly can while standing which is a lot harder than lying down. My heart beat is recorded with the ECG and Stethoscope. I check my pressure while holding breath. I fight through contractions.
Description
I hold my breath as long as I possibly can while standing which is a lot harder than lying down. My heart beat is recorded with the ECG and Stethoscope. I check my pressure while holding breath. I fight through contractions.