As of now, there's no evidence that the sun itself (in terms of UV ray exposure and such) causes depression.
However, daylight may play a role in depression. There is a type of depression known as seasonal affective disorder (SAD) in which depression sets in usually during autumn and winter months because lack of light may throw off one's circadian rhythm (our 24-hour biological cycle). Light therapy is a biomedical treatment for SAD.
Hypocalcemia can cause 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.
When your skin absorbs rays from the sun, your body produces vitamin D. Vitamin D can significantly lower your risk of illness and infection. A deficiency of vitamin D can lead to depression, chronic fatigue, diabetes, heart disease, stroke and osteoporosis. Too little sun exposure can also cause problems with your eyes and can cause seasonal affective disorder (aka, depression).
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
no