AdvertisementSnooze Alert: A Sleep Disorder May Be Harming Your Body And BrainAugust 24, 2015Jon HamiltonfacebookEmailMichael Arnott, of Cambridge, Mass., says he used to have trouble staying awake on long drives. Sleep specialists discovered he has obstructive sleep apnea, though not for the most common reasons — he isn't overweight, and doesn't smoke or take sedatives. (M. Scott Brauer for NPR)