59. According to the passage, which of the following is true? (A) Insomnia is a great issue regarding sleep; yet apnea cannot be ignored, either. (B) About 38,000 fatal heart attacks and strokes in the US are caused by insomnia. (C) Sleep is a less powerful predictor of how long one will live than cholesterol level. (D) People sleep soundly when they feel fresh with senses soaking up pleasures.