U.S. teens work late, long and in danger - study
465066
U.S. youngsters aged 14 to 18 who work at retail and service jobs during the school year put in an average of 16 hours a week, often at jobs that are dangerous and unsupervised, a study said on Monday.
758581
Teenagers who usually fall into bed at 2 am each night and get up a few hours later to make their 8 am classes are putting themselves at risk for more than chronic tiredness.
323551
Students who rely on all-nighters to bring up their grades might want to sleep on that strategy: a new survey says those who never study all night have slightly higher GPAs than those who do.
21087
Watching television more than two hours a day early in life can lead to attention problems later in adolescence, according to a study released on Tuesday.
241598
The long decline in sexual activity among U.S. teenagers, hailed as one of the nation's most important social and public health successes, appears to have stalled.
4387
America's doctors-in-training are  committing serious errors as a result of being forced to work  over 80 hours a week, says new research which suggests the U.S.  medical community has been slow to tackle sleep deprivation in  its staff.
525078
First graders who misbehave in school may be more likely to be regular smokers as young adults, according to new study findings.
184262
People who work from mid-afternoon into the wee hours of the night are liable to develop problems such as heartburn, stomach ulcers and constipation, new research shows.
280710
A national study released Thursday showed that teenagers whose friends were sexually active were more likely to smoke, drink or use illegal drugs.
139087
Young Americans spend more than 72 hours a week using the Internet, cell phones, television, music and video games, a study says.
195577
Two studies released yesterday by Harvard Medical School (HMS) researchers found that medical school interns work too many hours, and suggested that their shifts be reduced by half.
716554
LAGOS, Nigeria -- Seventeen-year-old Stella Felix rises at 5 a.m. to do chores and then walks nearly an hour to school. She has to share textbooks with schoolmates because her parents can't afford to buy them, and she does homework by candlelight.
195731
The average U.S. motorist spends 46  hours each year or nearly two full days stuck in rush-hour  traffic jams.
100742
America's doctors-in-training are committing serious errors as a result of being forced to work over 80 hours a week, says new research which suggests the U.S. medical community has been slow to tackle sleep deprivation in its staff.
531412
NEW YORK  - People who work from  mid-afternoon into the wee hours of the night are liable to  develop problems such as heartburn, stomach ulcers and  constipation, new research shows.
600823
Children tend to vary widely in  their sleep habits, with some being naturally "short sleepers"  and others needing more time in bed, a study suggests.
404073
Many teens do not get enough exercise and spend too much time in front of a television or computer screen. Yet, the few who are physically active do not