Lift something at the right weight, up and down repeatedly. Hold them well, breathe deeply and slowly, and counting the tempo. After the program of 30 minutes, everything seems clear then. Ps. 練練手臂, 動動肩膀, 搖搖脖子; 身體, 輕鬆了; 景象, 也清晰了. PPs. 拉抬自己, 舉高別人: 自娛娛人.