We systematically examined and updated the scientific literature on the association between
screen time (eg, television, computers, video games, and mobile devices) and sleep …

University students have low levels of physical activity and report disturbances to sleep,
which are independently associated with poor health outcomes. Some research suggests …

Studies have produced conflicting results about whether digital media (the Internet, texting,
social media, and gaming) displace or complement use of older legacy media (print media …

Poor sleep quality due to sleep disorders and sleep loss is highly prevalent in the modern
society. Underlying mechanisms show that stress is involved in the relationship between …

Teenagers need sufficient sleep to function well daily, yet consolidated evidence advising
which factors protect, or harm, adolescents' sleep is lacking. Forty-one studies, published …

Objective We tested the hypothesis that weekday bedtime use of six technologies would be
significantly associated with eight sleep parameters studied relating to sleep quantity, sleep …

Physical activity (PA) is considered an effective, non-pharmacological approach to improve
sleep. However, the accurate measurement of PA and sleep among adolescents is fraught …

OBJECTIVE: To systematically examine the relationship between sleep duration and
subsequent weight gain in observational longitudinal human studies. METHODS …

Short sleep duration has been shown to be associated with elevated body mass index (BMI)
in many epidemiological studies. Several pathways could link sleep deprivation to weight …

Both scientists and the general public assume that physical activity (PA) is an effective, non-
pharmacological approach to improvement in sleep quality. However, objective and reliable …