Medical problems also may cause depression or make it worse.
Lack of sleep alone cannot cause depression, but it does play a role.
"Having cancer could cause depression, not the other way around," he said.
This can cause depression and being to scared to go outside.
Children are subject to the same factors that cause depression in adults.
On the next page, we'll learn about what causes depression.
It can, for example, cause depression and a drop in property values.
Past physical, sexual, or emotional abuse can cause depression later in life.
There is little agreement about what causes depression and no.
Being the victim of a hate crime can also cause depression.