chapter  14
7 Pages

Pain and poor sleep

Gilles Lavigne and Christiane Manzini WHAT IS PAIN?
WithGilles Lavigne, Christiane Manzini

The word pain comes from the Latin poena, meaning punishment.1 According to a consensus from the International Association for the Study of Pain (IASP), pain is defined as ‘an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage’.2 The integration of both sensory and emotional experiences related to pain is now well accepted.