WebMD writes. depression WebMD a stunning 80% Up to 80 percent WebMD WebMD Depression and Insomnia depressão carried out by WebMD indicate three times more likely Depression and Insomnia It often co-occurs with insomnia, treatment of insomnia depressão WebMD treatment of insomnia WebMD Michael L. Perlis, MD, treatment of insomnia WebMD reports http://www.webmd.com/depression/features/sleep-problems WebMD depressão depression depression WebMD