Sickness is real. However, I've seen too many people suffering with sicknesses not of their own choosing to say glibly that all sickness is caused by sin. On the other hand, to believe that sin does not exist and that all of our trials and tribulations have naturalistic explanations or are simply random events may cause us to miss the very solution we seek. Elder Jeffrey R. Holland observed that "too many people . . . want to sin and call it psychology."