I read this article at fortune.com the other day called Here’s Why You Shouldn’t Multitask, According to an MIT Neuroscientist by Earl Miller. 

I couldn't agree more. One of the cornerstones of my new book, Working Smarter for Mac Users, is that you get more work done when you focus on one task at a time.

I knew this instinctively, but only after years of trial and error, which is why I found the science behind it so fascinating.

Here's an excerpt (click it to read the rest):

"Start by blocking out a period of time to focus. Eliminate as many distractions as possible: Put away your phone, turn off extra computer screens, shut down your email if you have to. Don’t try to mono-task by willpower alone; it’s too hard to fight the thirst for new information. Instead, prevent the urge by removing temptation. If you find yourself unable to concentrate, try taking a short break and move around. Increasing blood flow to your brain can help restore focus."

Here’s Why You Shouldn’t Multitask, According to an MIT Neuroscientist
By Earl Miller
http://fortune.com/2016/12/07/why-you-shouldnt-multitask/