Which of the Following Is NOT True About Sleep in Adulthood

Which of the following is NOT true about sleep in adulthood?

A) Poor sleep can result in earlier death.
B) Many older adults go to bed earlier and wake up earlier than adolescents and emerging adults.
C) Sleep problems in middle-aged adults are more common in those who are obese.
D) The average American adult gets just under 6 hours of sleep a night.