Practicing a piece of music for four hours requires focused attention, but it is nowhere near as cognitively demanding as a sleepover with 14-year-old girls.
练习一段音乐4个小时需要集中注意力,但它远不及一个在外过夜的14岁女孩对认知的要求。
Although it is possible that only people who are cognitively healthy would pursue such activities, those who read newspapers or magazines or played music did not show similar benefits.