Results 281 to 290 of about 17,725,252 (297)
Some of the next articles are maybe not open access.

Active Adventures-Health Breaks: Limiting Screen Time

On average, children ages 8-12 in the United States spend 4-6 hours a day watching or using screens, and teens spend up to 9 hours. While screens can entertain, teach, and keep children occupied, too much use may lead to problems.
openaire   +1 more source

Clinical Use of the Activated Partial Thromboplastin Time and Prothrombin Time for Screening

Clinics in Laboratory Medicine, 2014
Jerrold H. Levy   +3 more
openaire   +1 more source

Parents’ Perception of Neighbourhood Environment as a Determinant of Screen Time, Physical Activity and Active Transport

Canadian Journal of Public Health, 2010
John C Spence   +2 more
exaly  

Screen Time Is Not An Impediment To Physical Activity In College Students

Medicine & Science in Sports & Exercise, 2009
Charles J. Fountaine   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy