When it comes to time management, the brain is both our greatest asset and worst liability. Humans are the only species known to be capable of executive functioning—making decisions and strategic trade-offs in time management. While it is a myth that humans only utilize 10% of their brain capacity at any given time, the brain must still be regularly exercised to operate at optimal levels. Otherwise, the difficult but important work of the Slow Brain is overtaken by the Fast Brain’s conditioned response ephemera like telephone calls, emails, and minor crises. Let’s examine a few of the ways that the brain works against productivity.
Source: https://www.pmi.org/learning/library/importance-innovation-project-management-9858