📚 References

The primary dataset used in this project, containing comprehensive physiological and behavioral data from 22 healthy individuals over multiple days. This dataset includes sleep metrics, activity data, hormone levels, and psychological assessments.

This study explores how light exposure affects melatonin production and sleep quality, particularly under conditions of high sleep pressure. It provides crucial insights into the hormonal mechanisms that regulate our sleep-wake cycles.

A recent study examining the complex relationship between stress, emotions, and sleep quality. This research informed our analysis of how psychological factors influence sleep patterns and quality.

The foundational research behind the Daily Stress Inventory (DSI) and PANAS (Positive and Negative Affect Schedule) questionnaires used in our stress and emotion assessments.

International comparison of daily step counts across multiple countries, providing the specific data for average American step counts referenced in the PCP analysis. This data source enables accurate benchmarking of user activity levels against population norms, showing that Americans average approximately 5,117 steps per day.

A comprehensive systematic review examining how different types and timing of physical activity affect sleep quality and sleep disorders. This research guided our analysis of activity patterns and their relationship to sleep outcomes.