The Wall Street Journal wrote a tribute to William Dement, a medical professor at Stanford University, who spent his career trying to wake Americans up to the dangers of not getting enough sleep.

In 1970, Dr. Dement opened what he called the world’s first sleep-disorders clinic at Stanford. He established the treatment of those disorders as a board-certified medical specialty, lectured across the nation and taught a hugely popular undergraduate course called Sleep and Dreams. Typing with two fingers, he wrote books and more than 500 scientific articles.

Get the full story at wallstreetjournal.com.