This article explores why we cry and what health benefits crying may have. What to know about seasonal affective disorder Seasonal affective disorder causes a person to feel low during a particular season of the year. In this way, crying can help reduce pain and promote a sense of well-being. It is now more commonly known as major depressive…. A small study in found that crying can help babies sleep better. If this is the case, it is a good idea to speak to a doctor.