A study of over 15,659 adolescents found that those with earlier parental set bedtimes were less likely to suffer from depression and suicidal ideation. The association was most pronounced among adolescents who slept for five hours or fewer per night.
SourceAmerican Academy of Sleep Medicine·JournalSLEEP·DateJan 1, 2010
A study published in Sleep found that older men with restless leg syndrome (RLS) were more likely to experience erectile dysfunction. The association between RLS and erectile dysfunction was independent of other risk factors and was linked to hypofunctioning of dopamine in the central nervous system.
SourceAmerican Academy of Sleep Medicine·JournalSLEEP·DateJan 1, 2010