Research shows an increased prevalence of insomnia in women and older adults. In women, insomnia is more prevalent during menarche and menopause. Comorbid medical disorders, psychiatric disorders, and night duties or rotating shifts are significant risks for insomnia. | Research shows an increased prevalence of insomnia in women and older adults. In women, insomnia is more prevalent during menarche and menopause. Comorbid medical disorders, psychiatric disorders, and night duties or rotating shifts are significant risks for insomnia. |