Select the best option for each question and then click 'check your answers' at the bottom of the page to get the number of right and wrong answers. If you want to see the correct responses for each item, go to the question and answers section in the desktop version and take the test. The desktop version gives your score plus the correct response for each item.

1. Regularly getting one hour less sleep per night will have no effect on your performance.

2. Circadian rhythms are regulated by the pacemaker in the brain.

3. The sun's light and dark cycles have minimal effect on sleep/wake cycles.

4. Most people's circadian clocks adapt easily to night shifts.

5. Most people can adjust to sleeping less than 7 hours without negative consequences.

Check Your Answers