The last patient I saw one recent Friday was an 84-year-old man with insomnia. He was the writer-historian David McCullough. Mr. McCullough doesn’t have trouble falling asleep; his problem is staying asleep. He has been waking up earlier, and then cannot drift off again—a common pattern for people in their 80s. He worries that he may be making matters worse by taking an afternoon nap.

Source: Wall Street Journal March 25, 2018 19:07 UTC