DEAR DOCTOR K: A while back, you commented on a study that said getting cancer was mainly caused by bad luck. You said you thought the study was wrong. Then recently, I heard that another study agreed with you. Can you explain?
DEAR READER: In April 2015, I responded to a question about a study from a famous cancer researcher. The media had interpreted the study to say that getting cancer was just a matter of "bad luck." In other words, there was not much people could do to protect themselves against getting cancer.