Speed Relaxation: The key to going fast is to breathe and relax into the center of mass.
速度放松：速度更快的关键是用身体中心去呼吸和放松。
2
The key to female arousal seems to be deep relaxation and a lack of anxiety.
而男性兴奋则更取决于深度的休息和不焦虑的状态。
3
Relaxation (involving the whole body), arm weight (gravity drop), and avoidance of mindless repetitive exercises were key elements in Chopin's teachings.