Your heart is yours and if it fails on you thus causing your death, couldn’t you technically call that suicide? Sorry if this sounds stupid I question literally everything.
No, even though your heart is part of your body, you can't call an accidental failure of your body part causing death a suicide. A suicide is when you intentionally cause harm to your body causing death.
No. A suicide is committed by the person's own hand and is controlled by him. Hearts give out because we are imperfect and, therefore, the body is subject to break down without notice if we do not take proper care of ourselves.