If you mean the super natural, then yes. Spirits have energy and most may be scared. Most are scared because they don't know what happened to them and are stuck. You may get weird feelings in your house which may be spirits. But, if you are just depressed please tell someone.
Ignore the adds.
Hypocalcemia can cause depression
Humor helped uplift peoples spirits, making it easier to get through the depression
Music can't actually cause depression, seeing as depression is a medical disease, but it can cause a person to BE depressed.
Depression is a risk factor for stroke but depression does not cause stroke per se.
Many things can be the cause of depression. Questioning your own sexuality or the sexuality of someone close to you can cause depression also.
Research psychologists study the cause of manic depression.
If you are merely 'feeling low', then often a new outfit or hairstlye can quickly lift your spirits. But if you are truly suffering from depression, then you need to get medical help--a new hairstyle MIGHT make you feel better for a very short time, but the root cause of the depression is still very much there. Seek advice from your doctor.
Depression can very well cause delusions. But when this happens, it no longer is depression. If your seeing things out of the ordinary your depression could have turned into something much more serious like, physcotic depression.
Stress can cause Brief Reactive Psychosis, and it can cause Depression as well. so perhaps it can indirectly.
The main cause to the start of the great depression was the Wall Street Crash in 1929.
Yes, losing a friend can cause depression. Especially if you were close to that person.
No, rubbing a dog's belly does not cause depression. Too much change, not enough exercise, play, can cause depression in dogs. A great resource for information on dog depression is: http://dogtime.com/depression.html