Sentence Outline.

2. There are many causes of sleep deprivation, according to the Centers for Disease Control and Prevention.
   1. Busy work and family schedules contribute to sleep deprivation.
   1. As college students, many of us are trying to handle full-time course work and full- or part-time jobs to help pay for tuition, in addition to maintaining relationships with loved ones.
   2. New parents are often incredibly sleep deprived as they attempt to adjust to life with an infant as well as those infamous nighttime feedings.
   3. Shift workers (including police officers, nurses, pilots, and so on) often have trouble establishing good sleep habits because their schedules change frequently and they are sometimes required to work the night shift.
   2. Late-night television and Internet use can also interfere with the ability to fall asleep or can prevent individuals from adhering to a bedtime schedule.
   3. The use of caffeine and alcohol can also make it difficult to fall asleep and stay asleep.
   4. Some medical conditions—including insomnia and obstructive sleep apnea—also make sleeping incredibly difficult.

Phrase Outline.

2. Many causes of sleep deprivation (CDC)
   1. Busy work and personal lives
      1. Students struggling with school and work
      2. New parents adjusting to baby schedule
      3. Shift work disrupts sleep
   2. Using TV or computer late at night
   3. Use of caffeine and alcohol
   4. Medical conditions—insomnia and sleep apnea

Key-Word Outline.

2. SD causes (CDC)
   1. Family and work
      1. College students
      2. New parents
      3. Shift workers
   2. Television and Internet
   3. Caffeine and alcohol
   4. Medical conditions—insomnia, apnea