Cover of the textbook Performer B2 - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter 7 - Life comp for the textbook Performer B2 - Student's Book with authors Marina Spiazzi, Marina Tavella, Margaret Layton from Zanichelli

Question

Watch the video and answer the questions.

Answer

1)

  • The structure of a person's sleep stages and cycles is known as their "sleep architecture".

2)

  • stress
  • hunger
  • caffeine intake
  • excessive use of electronic devices
  • hormone melatonin

3)

  • lack of sleep can lead to serious medical conditions; shorten your life expectancy
  • sleep is paramount to the brain's ability to reorganize itself; fundamentally to well-being
  • important for our physical and mental development
  • lack of sleep can bring about cardiovascular and mental problems, like depression and anxiety
  • lack of sleep can weaken immune system, increase the risk of obesity and diabetes