Are you finding at the end of the day you are mentally exhausted? New things to learn, multiple emails accounts to monitor, multiple messaging apps, changes in command directions, urgent taskings, changing priorities - all increase the demands on our daily work routines. Psychologist Dr Brian Smith, suggests that the complex physiology of our brains makes it challenging to focus on multiple tasks at the same time. Multitasking diminishes our ability to remember what is required for each specific task. As we engage different parts of the brain for each type of new activity, it is using more mental energy to 'ramp up' and it could be affecting the quality of our work. In this article, he advocates some commonsense strategies. In Defence, productivity is linked to our ability to generate capability, so could applying the principles of monotasking increase your productivity?