Men working non-standard shifts have abnormal sleep cycles, and may develop shift work disorder, characterized by insomnia and sleepiness while awake. We hypothesize that non-standard shifts disrupt the HPG axis and increase these workers’ risk for hypogonadism and sexual dysfunction. Here, we examine the impact of sleep quality on hypogonadal symptoms and sexual function in male non-standard shift workers. (Source: The Journal of Urology)