I'd like a phonecard, please onde encontrar ribavirina em manaus Scientists, led by Christian Cajochen, analyzed the sleep of 17 volunteers ages 20 to 31 and 16 volunteers ages 57 to 74 in a laboratory, looking at brain patterns, eye movements and hormone secretions. They set up conditions so that light and time cues, and the potential for biased beliefs about the moon and sleep were not factors. The participants did not know the researchers were looking at the effect of lunar cycles on sleep.
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