plenty of unspoken words in this classic film scene from “Casablanca”.

Sighs is a fascinating topic, I found, as I accidentally switched on the radio on Monday in time to hear the 30 minute Radio 4 programme “The Sigh” by poet Imtiaz Dharker.

http://www.bbc.co.uk/programmes/b08578tw

Particularly interesting to me was her interview with Naya Tsentourou (an expert on sighing in religious poetry such as John Donne and George Herbert) and who is also taking part in the Wellcome Trust’s interdisciplinary project examining breath in health and culture: http://lifeofbreath.org/

Sounds fascinating – its investigations cover

Exploring breathing and breathlessness at the interface between arts, humanities and medical practice

… and one very recent memorable example of a sigh – the 3 second ringtone set on Sherlock’s phone by the sultry Irene Adler (in the episode “A Scandal in Belgravia”).