7. Don't Multitask
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Many of us may prize ourselves on our multitasking prowess, but science generally shows that splitting our attention is more problematic than productive. One study looking at working memory – quick storage of information – had younger and older adults perform recognition tests with or without interruptions. They found that adults of all ages get sidetracked by interferences but that older adults have a harder time refocusing after they've been distracted.