Research refinement

Sitting is killing you; related articles in TIME magazine

Teens and 60 year olds 
The benefits of exercise are numbed by the hours spent sitting 
Increase cancer risk by 66%
Obesity linked with sitting
PLoS ONE
Reasons not to sit
Sitting disease
Sedentary jobs
Sitting at work 
Sitting is killing you
Sitting shortens lifespan
Group walking
The war on sitting plus motion graphic
Sitting ages you

Basically my abstract 

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3714478/



Screen time is bad for obesity 
Screen time and obesity, need for PA
TV and health risks - good and references
Men at higher risk than women
Study from the 60's