View source for Caffeine's 'Boost' Disappears When You're Extremely Sleep-Deprived

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[[Category: Pharmacology]]
[[Category: Sleep]]
[[Category: Papers]]

In the study, caffeine stopped being significant after 2-3 days of 5h sleep compared with placebo. (200mg twice a day, if I read this right?)

"Results showed that the caffeinated group had '''faster reaction times''' during the first two days compared with the placebo group, '''but not on the last three days''' [out of 5] of the experiment, [...] The people who took caffeine reported '''feeling happier''' than those who took the placebo only on the first few days of the experiment." + "those in the caffeine group rated themselves more annoyed than those in the placebo group"

Study did not increase amount of caffeine