For more information, see the page in this guide on external causes of stress.

Infections from external causes become a leading threat of death.

The external cause of the pain was gone, but the internal one apparently remained.

Thoughts that one's own action is caused by someone else's will or some other external cause.

See the page in this guide on external causes of stress.

Men more often had their anger attributed to an external cause.

As a matter of interest would you say that the difference in the experience has an internal or external cause?

Notice that neither of them clearly requires any external cause, although some are thought to exist.

There are many internal and external causes to skin aging.

She looked around, almost as if seeking some external cause for her behavior.