Circadian Rythms 2011 Question 2

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Challenge Question 2


2. Changes in our daily rhythms such as those caused by Jet Lag and Daylight Saving affect most people but are particularly difficult for teenagers.
(i) Explain why people are affected by the change in time that occurs when daylight saving starts and finishes and why this is particularly difficult for teenagers.
(ii) Which end of daylight saving (April when we put the clocks back an hour, or October when we put the clocks forward an hour) is more likely to have a negative effect on teenagers and why?
(iii) Use your knowledge of human circadian rhythms and evidence from the seminar to explain the quickest way for someone to adjust to the new time at the start and end of daylight saving.