Publications by authors named "J Zeitzer"
Aims: Sleep timing, influenced by chronotype, behavior, and circadian rhythms, is critical for human health. While previous research has linked chronotype to various health outcomes, the impact of aligning sleep timing with chronotype on physical health remains underexplored. The objective of this study is to investigate the association between chronotype, actual sleep timing, and their alignment with a spectrum of physical health outcomes.
View Article and Find Full Text PDFReconsidering the spectral distribution of light: Do people perceive watts or photons?
Light Res Technol
December 2024
Article Synopsis
- The paper discusses the importance of spectral distribution in non-monochromatic optical radiation, its relevance in research, and its applications in understanding light's interaction with matter, including humans.
- It highlights common misconceptions in the lighting field that lead to incorrect claims, often due to relying on graphical analyses of spectral distribution.
- The authors stress the significance of considering the particle nature of light and advocate for the use of the photon system of units in lighting research to ensure accurate applications of spectral distributions and spectral weighting functions.
The duration of sleep data collection from actigraphy is often influenced by practical factors (e.g. workdays versus non-workdays), but the impact of the variation of duration on outcome measures of interest has not been well explored.
View Article and Find Full Text PDFBackground: Disturbed sleep is frequently identified in adult patients with cancer and their caregivers, with detrimental impact on physical health. Less known is the extent to which self-reported and actigraph-measured sleep patterns are similar between patients and their sleep-partner caregivers, and how these different modes of sleep measurements are related to physical health.
Methods: Patients diagnosed with colorectal cancer and their sleep-partner caregivers (81 dyads) completed a questionnaire for physical functioning and collected saliva samples for seven consecutive days, from which cortisol slope was quantified.