众所周知,人的大脑皮层存在着机能定位:左半球擅长语言、分析、逻辑等,主管人体大部分的精神活动;右半球主要掌握人体的几何综合能力及其他高级功能。大脑的左、右半球还分别支配对侧的肢体和躯干。一般来说,长期使用右手,可导致左侧大脑半球的负担过重,以致神经疲劳、记忆力减 It is well-known that there is a functional orientation in the human cerebral cortex: the left hemisphere is good at language, analysis and logic, which is responsible for most of the mental activities of the human body. The right hemisphere mainly masters the geometric comprehensive ability of the human body and other advanced functions. The left and right hemispheres of the brain also dominate the contralateral limbs and torso, respectively. In general, long-term use of the right hand can lead to overburden of the left hemisphere, resulting in nerve fatigue and memory loss