Many people would be better off if they did less and reflected more.

— Manfred Kets de Vries, INSEAD Distinguished Professor of Leadership Development & Organisational Change 

Despite making technological advances to speed up our work, we somehow find ourselves working more—not less. The busy lifestyle may deceptively make us feel productive and accomplished.

But research has finally exposed the tolls of avoiding free time: depression, sleep deprivation, relationship breakdown and poor quality of work, to name a few. Doing nothing may sound like a waste of time, but it's one of the secrets to keeping your brain in top shape.