Balasubramanian A, Kohn TP, Santiago JE, et al. - Investigators sought to examine the correlation among shift work sleep disorder (SWSD), a primary circadian rhythm disorder characterized by excessive daytime sleepiness associated with shift work, and hypogonadal symptoms in shift workers. In a total of 24.1%, men (worked non-standard shifts) came to an andrology clinic complete questionnaires assessing shift work schedule, SWSD risk, and hypogonadal symptoms (quantitative) Androgen Deficiency in the Aging Male (qADAM, ADAM) in July 2014 and June 2017. Of those, 196 (31.7%) were supposed to have SWSD. By utilizing ANOVA and linear regression they evaluated the effects of non-standard shift work and SWSD on responses to Adam and ADAM. It was found that in comparison with daytime workers and non-standard shift workers without SWSD, non-standard shift workers with SWSD had even worse hypogonadal symptoms and more under T levels. It was implied that bad sleep habits, as recognized by SWSD, might contribute to the more severe hypogonadal symptoms shown in non-standard shift workers.