Parents, listen up! It's a new year, and the risky behavior of teenagers is ever-evolving into dangerous new trends propagated on the Internet. Is your teen involved in an activity that would shock you?

Cody, Connor, Grayson and Garrett are teen friends who learned of mattress surfing online. Now, they film their own daredevil stunts on a mattress being pulled behind a truck at top speed.  

What do their parents think? 

Joey and his brother, Frank, were on their third day of mattress surfing when tragedy struck. Joey and his father, Keith, have a stern warning for the four teens.

"Before Joe could stop, he ran over Frank." 

Many people feel this practice is inhumane when it's done to animals " but now some teens are putting their health at risk to do it to each other. Tony, Matt and their friends were bored one day, so they decided to brand each other.  

"I would never do this again." 

Kaytee, 16, is a diabetic who skips her insulin doses in order to lose weight. Although she risks organ failure, blindness and even death, Kaytee says it's worth it. Her mother, Michelle, is frustrated that she can't fix her daughter.

Plus, meet a woman who's been committing this slow suicide for 15 years.