Two of the most popular dietary supplements used for insomnia are: 1  Melatonin, a hormone produced by the brain. You can also buy it as a supplement. 2  Valerian, an herbal sleep remedy. Valerian appears to be safe, and it may improve sleep when taken for a week or two.
The average spell of clinical depression, if left entirely untreated, will last around 8 months. During a depression, the sufferer will normally be convinced that it will never go away, but this is a classic feature of the way depression makes us think.
1 Also called major depression, this is a combination of symptoms that hurt a person's ability to work, sleep, study, eat, and enjoy hobbies. 2  Dysthymic (diss-TIME-ic) disorder. 3  Also called dysthymia, this kind of depression lasts for a long time (two years or longer).