The benefits of a good night's sleep

Which of the following is correct with regards to sleep?

• Sleep is important only for babies' growth and development

• Sleep is the keeper of our biological systems, for better maintenance we should sleep most of the day

• Sleep is important since it consumes a third of our life

• Sleep reinforces the balance of growth, body metabolism, immunity, learning and memory, and mood in all humans

• Sleep is very important, but not for teenagers or adults

If you are getting ready for an important test at school, you should:

• Study all through the night to not miss a bit of information

• Get up early in the morning to re-learn the notes you prepared

• Drink lots of coffee while studying, it improves memory

• Get a good night's sleep during the exam period and before the test itself

• Study the important parts of the material, and count on luck

Everybody can learn and remember, but:

• We tend to forget about one-third of what we learn within 20 hours

• With fewer hours of sleep, our memories improve

• We need to sleep well every night and review material several times in order to consolidate memory

• We need to re-learn and go over new information in order to replace old memories

• We do not need to repeatedly review information to remember it if we get enough sleep

The part in the brain that plays a role both in sleep and memory is:

• The cortex

• The thalamus

• The hypothalamus

• The hippocampus

• The brain stem

Which is correct?

• Consolidation is the stage of sleep that helps us remember

• Without the hippocampus, we would learn more efficiently

• The hippocampus works best when the brain is sleep deprived

• Heightened positive and negative feelings while studying can help us remember better

• Sleep has no effect on memory