For optimal health, adults are advised to sleep at least how many hours per night?

If someone drinks a cup of coffee, the alertness from caffeine may persist for at least

According to scientific studies, melatonin supplementation is most effective for which of the following situations?

True or False: Sleeping fewer than 7 hours per night tends to consume more calories.

Which of the following statements best explains why people who work night or rotating shifts have higher rates of risk for unintentional injury?

Persistent inadequate sleep (chronic short sleep) is associated with several health effects. Which of the following statements are correct?

I. It increases the risk for ischemic stroke.

II. It disrupts lipid/cholesterol metabolism leading to adverse lipid profiles.

III. It decreases the likelihood of tobacco use.

IV. It lowers resting blood pressure.

Which is the most commonly reported sleep complaint among college students?

Maria, age 48, was recently diagnosed with moderate obstructive sleep apnea. Her clinician recommends a program of caloric restriction and regular aerobic activity in addition to CPAP therapy because:

Which of the following statements about cognitive-behavioral therapy for insomnia (CBT-I) regarding difficulty falling asleep is correct?