Hellow guys, Welcome to my website, and you are watching Dr. Mark Cheng's "Optimization Outtakes Series" #1 - Postural recalibration. and this vIdeo is uploaded by Dr. Mark Cheng at 2016-07-08T14:28:09-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.