The most recent thing I learned is that our brain hates frequent checking of emails. This frequent context switching never comes naturally to our human brain.

In his book A World without Email, Cal Newport highlights the fact that our brain operates best in a sequential manner. But due to the digital revolution in an age of email and social media, wherein we frequently check emails and messages, our productivity goes down.

This frequent context switch is something our sequential brain finds very difficult to adjust.

Hence for Deep Work it is recommended to focus on the job at hand avoiding frequent context switching.

Incompatibility of Sequential Brain in a Parallel World