The answer is very simple. It's all in how they perceive their problems.Yes, every living person has problems.A problem-free life is an illusion-a mirage in the desert.Accept that fact.
Every mountain has a peak. Every valley has its low point.Life has its ups and downs, its peaks and its valleys.No one is up all the time, nor are they down all the time.Problems do end.They are all resolved in time.