This study looks to understand and monitor the type, amount, length and intensities of daily physical activity, as well as the timing, efficiency and length of your sleep. We are looking to find out which environmental and individual factors may influence your daily exercise and sleep, and therefore may be affecting your physical and mental health.
In the SCAMP study, sleep timing, duration and quality have been measured using self-reported questionnaire. We found that night-time use of at least one screen-based media devices, mobile phones or televisions was associated with poor sleep quality in all aspects, including experiencing difficulty falling asleep and waking up too early. Night-time mobile phone and television use was associated with insufficient sleep duration on weekdays. Use mobile phones in a room with light were associated with insufficient sleep and later sleep midpoint on weekends. Another study nested in the SCAMP study suggested that high level of digital technology use is associated with insufficient sleep, and insufficient sleep time is associated with higher risk of obesity.