The head should be parallel to the arm as far as possible, and the head should rotate in the opposite direction to the arm, and the left and right sides should be divided into three groups for 30 seconds. Keep breathing naturally.
2/3
Reverse 45 degrees with one hand, gently stretch the head, and stick three groups of 30s*** on the left and right. Chest out and abdomen in!
3/3
Put your hands together on your chest and stretch your hands and head in the opposite direction. Left and right groups, 30s * * * three groups each. Keep your back stretched.
Finally, inhale and lift your shoulders to the highest point, a group of 30s*** three groups. Hold your head up and chest out.