Is depression different from being sad? Absolutely! Sadness can be a symptom of depression, but the presence of one does not necessarily mean that the other is present.
How is it that more suicides are not captured and presented? When signs are noticed, people often act, but the signs of suicide attempt, if present, are often not clear indications of intent. There are some signs that can open the way to ask the questions. When these signs are noticed, the question must be asked.
Video credits to DrJudiC YouTube channel