It is all too easy in our fast-paced, modern lives for our brains to become clogged up with too much stuff. We're continually distracted by emails and tweets while juggling our work and home lives, so it's hard to think straight sometimes.
But fear not: the entrepreneur and consultant Jamie Smart argues that the human mind has its own "self-clearing" capacity, capable of guiding us back to clarity when things get a little muddy. "Clarity of understanding leads to clarity of mind," says Smart, who advocates his Innate Thinking Model to help people achieve this. This model is "a business-friendly coding of the principles behind our experience, and the implications of those principles". It seems that becoming clear-headed is more complicated than it would first appear.
The good news is that clarity and peace of mind are the default position for people - our factory setting, if you like. Young children operate at this level all the time by being true to their feelings and living in the moment. Adults, having been conditioned to think differently, need to relearn how to be like a toddler. Just don't have a tantrum when your boss hands you extra work at 4pm on Friday.
Emma De Vita is books editor of Management Today