| http://www.w3.org/ns/prov#value | - The author explains that attention span can be compared with a ???mental muscle that we can strengthen by a work out,??? with memorization and concentration being the forms of exercise that work the ???muscle.??? Showing how much time is spent in day-dreaming and mind wandering???up to 40 percent of the day, according to some estimates???Goleman identifies the changes in psychological and mental h
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