TEEN TEXTING

Mikaela Espinoza, 17, talks to a friend on her cell phone while checking her MySpace page, as the television is on in the background, June 20, 2009. Espinoza is among the many teens that stays up late to talk or text their friends or chat online, but their lack of sleep is beginning to impact their health. (Lezlie Sterling/Sacramento Bee/MCT)