Stress - from the Latin "stringere", to squeeze tight, touch or injure - is not bad, per se. Positive stress and adrenaline in the right circumstances can make us stronger, happier and healthier. Yet, in certain work environments, chronic stress provokes anxiety, detachment and fatigue that can lead to burnout.

The World Health Organization (WHO) estimates that nearly every fifth child or teenager and every fourth adult will be affected by burnout at some point in his or her active life. The situation is so widespread in developed countries that the WHO has added burnout to its list of globally recognized diseases, defining it as a syndrome of "chronic workplace stress that has not been successfully managed" which "includes feelings of energy depletion or exhaustion, results in increased mental distance from one's job and reduced professional efficacy."

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