On your stomach with all fours, you head up Inhale and lower your back with your arms perpendicular. Then release your breath as he heads down and raise your back upwards.
Perform this movement as much as 20 times, Sit in a relaxed manner after the above heel.
The purpose of this movement is to stimulate the spinal flexibility.
Watch below video of How To Grow Taller Fast With Video Part 13 Head up and down.
Next part is How To Grow Taller Fast With Video Part 14 Split Stretch.