Sadness can slip into depression, and the key trigger that advances sadness into depression is:

Name: Sadness can slip into depression, and the key trigger that advances sadness into depression is:
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Rumination, or the act of continuously thinking about the same thoughts, which are often sad or dark, can turn normal sadness into depression. It involves dwelling on negative feelings and experiences, which can exacerbate and prolong depressive states.

Sadness Can Slip into Depression, and the Key Trigger That