1. Describe what happens during NREM and REM sleep.

A: In the beginning of a sleep cycle, we enter NREM sleep. The body recovers from the stress of the day's activities during this part of the sleep. Then, about 1.5 hours into sleep, we enter REM sleep, or dream sleep. Our eyes move rapidly during this phase of sleep. Throughout the entire sleep cycle, periods of NREM sleep alternate with periods of REM sleep.

2. Which common causes of insomnia can you control? What changes would make the most improvement to your sleep?

A: I can control all common causes of insomnia, which includes caffeine, alcohol, smoking, stress, and lack of exercise. I believe, however, that more exercise would make the most improvement to my slumber?

3. Do you think insomnia can affect teens? Explain.

A: Yes, I do. I believe this because stress, as well as the other causes, is a common cause of insomnia in which fills a teenager's life?

4. Give reasons why teens need more sleep than adults do.

A: Teenagers need more sleep than adults do because, when puberty takes place, the timing of a teenager's circadian rhythm, the body's internal system for regulating sleeping and waking patterns, is delayed. When the rhythm is delayed at puberty, the body naturally wants to rest later at night and awaken later in the morning. So, teenagers usually have more difficulty falling asleep until late at night and have a more difficulty waking early in the morning?

5. Explain the relationship between the key terms in each of the following pairs.
a. physical fitness and chronic disease
b. overtraining and RICE
c. sleep apnea and sleep deprivation
d. RHR and target heart rate zone

A:
a. Physical fitness corresponds with chronic disease as physical fitness, or physical activity, is what prevents chronic disease.
b. Overtraining and RICE corresponds with each other, since overtraining can cause chronic injury. RICE is applied to these chronic injuries and enables them to heal.
c. Sleep apnea and sleep deprivation are correspond with each other. Sleep apnea is a sleeping disorder characterized by interruptions of normal breathing patterns during sleep, which results in sleep deprivation, a lack of sleep.
d. RHR and target heart rate zone are relate to each other but are different. RHR is the number of times the heart beats per minute while at rest, whereas target heart rate zone is a heart rate range that should be reached during exercise to gain cardiorespiratory health benefits?

Good.

To summarize, during NREM sleep, the body recovers from daily activities and stress, while in REM sleep, eye movement is rapid and dreaming occurs. Common causes of insomnia that can be controlled include caffeine, alcohol, smoking, stress, and lack of exercise. More exercise can make the most improvement to sleep. Insomnia can affect teenagers, especially due to stress. Teenagers need more sleep than adults because their circadian rhythm is delayed during puberty, causing difficulty falling asleep earlier and waking up earlier.

The relationship between the key terms are as follows:
a. Physical fitness and chronic disease: Physical fitness helps prevent chronic diseases.
b. Overtraining and RICE: Overtraining can cause chronic injuries, and RICE (Rest, Ice, Compression, Elevation) is a method used for healing those injuries.
c. Sleep apnea and sleep deprivation: Sleep apnea is a sleeping disorder that leads to sleep deprivation, a lack of sleep.
d. RHR and target heart rate zone: Resting Heart Rate (RHR) is the heart rate at rest, while the target heart rate zone is a range to be reached during exercise for cardiovascular health benefits.