"Based on over a half-century of cognitive science and more recent studies on multitasking, we know that multitaskers do less and miss information. It takes time (an average of 15 minutes) to re-orient to a primary task after a distraction such as an email. Efficiency can drop by as much as 40%. Long-term memory suffers and creativity — a skill associated with keeping in mind multiple, less common, associations — is reduced."