Restoration Theory

Question 1

What is the restoration theory?

Answer 1

States that sleep is vital for replenishing and revitalising the mind and body to keep them at optimal functioning levels

Question 2

Give two pieces of evidence for this theory

Answer 2

• following vigorous activity there is an increase in NREM sleep and the body needs to replenish
• people sleep longer in R.E.M. after being deprived of it

Question 3

Give two criticisms for this theory

Answer 3

• while dreaming the brain is active when it should be conserving energy
• bedridden people experience the same amount of NREM sleep as everyone else