Teens who work too many hours put their health at risk:
On the risks of tanning salons for teens:
http://washingtonexaminer.com/news/nation/2011/02/doctors-want-teenagers-banned-tanning-salons
http://www.medindia.net/news/Teenagers-to-be-Banned-from-Visiting-Tanning-Salons-81636-1.htm
http://www.thetelegraph.com/news/tanning-52165-most-salon.html
On the risks of energy drinks:
Teens who have a dog are more active:
http://www.kansascity.com/2011/02/21/2672310/teens-with-dogs-are-more-active.html