The effects of insufficient sleep ______ teenagers can be quite dramatic, even more so than in adults.

The most well-known extreme sports competition began ________ the USA in 1995, and is called the ‘X Games’.

Extreme sports are all about _______ thrill of it.

Teenagers not getting enough sleep can cause low mood, behavioural problems ______ an inability to concentrate.

The X Games are held in the summer and winter, in order to cater _______ all the major extreme sports.

The report also highlighted that the number of teenagers suffering from sleep-related issues ______ increased dramatically over the last ten years.

Researchers found that the average amount of sleep that teenagers get is between 7 and 7.25 hours per ______ .

Extreme sports are sports _________ are known to be of high risk or speed, such as snowboarding, skydiving or freestyle skiing.

People who compete in such events do it mainly for the adrenaline rush that potential danger provides. However, just ________ the Olympics, there are many other incentives.

A lack ______ sleep for teenagers can cause low mood swings.

The X games are held annually, ________ in the summer and winter.

Some people do them just ________ fun, while others really test the limits of what is humanly possible.