Why the study?
Does light exposure at different phases and intensities affect resting heart rate in volunteers?
Population
Volunteers between 20 and 40 years of age
Comparison
Light exposure at different phases of the… vs Complete darkness (0 lux)
Design
Other
Authors
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Light may modulate resting HR via circadian phase; leaves open whether timed exposure affects cardiovascular outcomes.
Does light exposure at different phases and intensities affect resting heart rate in volunteers?
Light exposure increases resting heart rate in a phase- and intensity-dependent manner, suggesting modulation by the circadian pacemaker.
Scheer et al. (1999) studied this question.
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