Sleep

Question 1

Sleep

Answer 1

Rest in which we become unaware of our surroundings, muscles relax, and breathing and heartbeat slow down

Question 2

Which system does sleep help revitalise?

Answer 2

The nervous system

Question 3

What happens if you don’t get sleep?

Answer 3

People soon lose energy and concentration and grow irritable

Question 4

Orthodox sleep (75% of total sleep)

Answer 4

The body is relaxed

Question 5

Paradoxical sleep (25% of total sleep)

Answer 5

Dreams occur

Question 6

Stages of sleep: Part 1 Consciousness

Answer 6

We are aware of our surroundings

Question 7

Stages of sleep: Part 2 Shallow orthodox sleep

Answer 7

Body building and repair processes reach their peak

Question 8

Stages of sleep: Part 3 Paradoxical (REM) sleep

Answer 8

Breathing and heartbeat grow irregular, eyes move to and fro between shut lids, brain activity increases, and we dream

Question 9

REM

Answer 9

Restless eye movement (paradoxical sleep)

Question 10

How many REM phases are there in 8hrs sleep?

Answer 10

3-5