Doctor and Patient - A Surgeon Learns of the Choking Game - NYTimes.com

The subject of this article is grim but really important. It's important to educate yourself and the young people in your life that this activity is extremely dangerous. The article also lists signs that can warn of a child participating in such "games".

snip:

"Until recently, there has been little attention among heal...th care
professionals to this particular form of youthful thrill-seeking. What
has been known, however, is that children ages 7 to 21 participate in
such activities alone or in groups, holding their breath, strangling
one another or dangling in a noose in the hopes of attaining a legal
high.

"Two years ago the Centers for Disease Control and Prevention reported 82 deaths attributable to the choking game and related activities. This year the C.D.C. released the results of the first statewide survey and found that one in three eighth graders in Oregon had heard of the choking game, while more than one in 20 had participated."