Young people can have problems with their minds. Some students become worried because they have to study very hard. Others have trouble getting on well with people like their parents and classmates.

Liu Wei, a Junior（初级的）student from Hefei, could not understand his teacher and wasn’t doing well in his lessons. He started to cut his finger with a knife because he was worried about his lessons.

Another student, 14-year-old Yan Fang from Guangzhou was afraid of exams. She got very nervous（焦虑的）. When she looked at the exam paper, she couldn’t think of anything to write.

A recent report（报道）from Jiefang Daily says about 18% of Shanghai teenagers have mental（心理的；精神的）problems. Their troubles include being worried and very unhappy and having problems in learning and getting on with people. Most of the students who have mental problems won’t go for advice or help. Some think they will look stupid（愚蠢的）if they go to see a doctor. Others don’t want to talk about their secret（秘密）.

Liang Yuezhu, an expert on teenagers has the following advice for teenagers:

*Talk to your parents or teachers often.

*Take part in group activities and play sports.

*Go to see a doctor if you feel unhappy.

Last year in the UK at least 45 people died and 900 more were injured in car accidents where drivers were using their mobile phones. Yet many people continue to use them while driving even though it's dangerous.

Research has shown that it is difficult to concentrate on driving and talking at the same time. It can even be more dangerous than driving after drinking too much. A recent study found that when drivers were talking on their mobile phones, their stopping times were 30 percent slower than when they had drunk too much—and nearly 50 percent slower than when they were driving normally. It also found that drivers talking on mobile phones were less able to control their cars than drunk drivers.

And talking isn't even the most serious problem, texting is. Unbelievably, another recent study reported that 22 % of adults admitted they had sent a text message while driving at least once in the past month. An average text message takes 90 seconds to write and send. That means for one and a half minutes a driver is looking at their phone's screen and not at the road. The arrival of new smart phones such as the iPhone will only make matters worse as they will allow users to do more things than ever before.

Using a mobile phone while driving puts others' lives at risk. No matter how well we drive, if another driver is not being professional or careful, we are put in danger by their actions. Such drivers are selfish, careless and should have their driving licences (驾照) cancelled.

There is no doubt that mobile phones call be fun and are extremely useful, especially when you're in trouble. But there is no need to use them while driving. Just wait until you stop or you will probably get into trouble of your own.

A study from a team of South Korean researchers suggests that eating alone often may lead to poor eating habits and poor food choices. And the study found that people who ate alone more than twice a week had a greater risk of developing high blood pressure and heart disease.

For children, eating with their families is not only about stopping bad outcomes（结果）— it is also about developing good ones.

In 2014, the Organization for Economic Cooperation and Development（OECD）looked at data from nearly three-quarters of the world’s countries. Among its findings was the fact that students who shared a main meal with their families were less likely（有可能的）to drop out of school. Children who eat a main meal with their families are also less likely to abuse drugs and alcohol（吸毒酗酒）.

In the report, titled “The Importance of Family Dinners（VIII）” researchers say that “teens who have frequent（经常的）family dinners are more likely to say their parents know a lot about what’s going on in their lives”. They also say that when teens think they are closer to their parents, they are less likely to use drugs and alcohol.

Another study from the University of Montreal found that children who ate with their families experience long-term health benefits（好处）. These children were in better health and drank fewer sugary soft drinks. These children also seemed to have better social skills and they were friendlier.