CAFFEINE

Question 1

what does Caffeine do to Sleep?

Answer 1

promotes wakefulness by antagonizing adenosine receptors in the brain

Question 2

What does Adenosine do?

Answer 2

Modulates metabolism by lowering it’s activity

Question 3

Subjective measures in Adolesecents

Answer 3

shorter sleep duration, longer sleep onset latency, increased wakefulness open sleep onset, increased daytime sleep and sleepiness

Question 4

subjective measures in adults

Answer 4

high doses associated with poor sleep, longer sleep onset latency, higher tolerance, habitual intake (moderator variable)

Question 5

Objective Measures of Caffeine and Sleep

Answer 5

Increase in sleep quality, wakefulness sleep onset latency
Decrease TST and SE
Increase in stage 1 and arousal
Decrease in stage 2 and SWS

Question 6

EEG Objective Measures

Answer 6

decrease in slow wave or delta activity (0.5 to 4.5 hz)
increase sigma and beta activity (13 to 30hz)
more sensitive to sleep stages

Question 7

How long does caffeine stay in your blood stream?

Answer 7

16 hours