许多培训机构都提供了同时训练双手灵活性的项目,并宣称这些项目能够提升认知能力。然而,科学研究结果显示,强行锻炼非惯用手的灵活性不仅不能让人变得更聪明,还可能会带来一定的风险。人类在四岁时开始偏向于使用某一只手,这种习惯会持续一生。大部分人偏向于使用右手(右撇子),剩下的大多数人更习惯用左手(左撇子),也有极少一 Many training institutions offer programs that train both hands flexibly and claim that these programs enhance cognitive skills. However, the results of scientific research show that the flexibility of forcing non-dominant hands not only can not make people smarter, but can also bring certain risks. Human beings tend to use one hand at the age of four, a habit that lasts forever. Most people tend to use the right hand (right-handed), while most of the rest are more used to left-handed (left-handed) and have very few