This is a great article that makes the point that our ability to multi-task increases during our teen years before it starts a steady decline in our mid-30’s.
Interesting, because as far as I can tell, most professionals develop their first time management systems during that time.
This might explain why White Belts proliferate in most companies, and get into real trouble when they either get older, or have to deal with a rapid increase in the number of time demands that they must manage.
There are some other cool links at the site, including a reference to a series on Multitasking recently broadcast on NPR.
Here is a link to the post: This is Your Brain on Multitasking.