Task 5

Question 1

Adverse effects daylight saving time

• introduction and methods
• Medina

Answer 1

• Need time to adapt to DST
• adolescents and students more susceptible to adverse effects of DST
• group students objective and subjective measurements during 2 weeks surrounding DST
• sleep duration measured by actigraphy and sleep diary
• daytime performance measured by psychomotor vigilance test and sleepiness scale

Question 2

Adverse effects daylight saving time

• results
• Medina

Answer 2

• decreased sleep time
• cumulative sleep loss 2h 42 min, average 32min/night
• increase sleep duration on saturdays
• increased daytime sleepiness
• increase reaction times

Question 3

Adverse effects daylight saving time

• discussion
• Medina

Answer 3

• decline sleep duration with 2h sleep loss
• increase subjective daytime somnolence
• drop vigilance test performance
• decline in cognitive function