Depression is a devastating mental disorder affecting up to 20 of Canadians at some point in their lives. It places the sufferer at .\rbr\rbr Dr. John Humiston, a former U.S. Navy physician with extensive experience treating major depression, yeast infections, ADHD, chronic .\rbr\rbrDiane has been reclusive and depressed, with insomnia and fatigue, for decades. Listen to her inspiring story.\rbr\rbrPeople with a mental illness like depression, anxiety, or bipolar disorder are more likely to suffer from insomnia or other sleep disorders.