Look at the habitual masturbator! See how thin, pale and haggard he appears; how his eyes are sunken; how long and cadaverous is his cast of countenance; how irritable he is and how sluggish, mentally and physically; how afraid he is to meet the eye of his fellow, feel his damp and chilling hand, so characteristic of great vital exhaustion.” Dr Henry Guernsey, Plain Talks on Avoided Subjects (1882)