【推荐1】Picture the scene: It’s midnight. You’re very hungry after studying for a long time. Then you see a nice pie in the fridge. Should you eat it? It seems that you shouldn’t for many reasons, including its influence on your brains.

Scientists have long known that eating late at night can make us put on weight. But now a new study has shown that late-night eating can also have a bad influence on our brains — it might hurt our ability to learn new things and store memories.

“We believe that late-night eating may affect(影响) our learning by affecting the parts of the brain that control learning and memory,” Dawn Loh. PhD, a project scientist at the University of California, Los Angeles, said. “We believe the timing of when we eat is the main cause of the damaged memory.”

For the study, the researchers did an experiment on mice. The mice were either allowed to eat during the daytime or during the night. They received the same amount of sleep and calories. Then the researchers tested the brains of the mice and noticed that the mice eating during the night were less able to remember things well.

So think twice before the midnight snack — it might be bad for more than your weight.

【推荐2】Obesity (肥胖症) is becoming a problem in our busy society. Almost one in three American adults is now considered to be obese. Children obesity is also at an all-time high. Obesity means being very overweight. If you are obese, you have too much body fat. If you eat more food than your body can use, this will make you put on weight. Food that your body does not need will be stored as fat by your body.

The following are the major factors (因素) that increase the risk of obesity.

What you eat plays a major role in weight gain. Eating a lot of fast food such as hamburgers, sweet drinks, ice creams and other sweet food can increase the risk of becoming obese.

If you do not do enough exercise, you will put on weight as the food you eat is not being used to make energy for physical activities.

The chances of you being obese are greater if your parents are obese.

There are many psychological (心理的) factors that cause people to eat too much. People who are worried, unhappy or bored will often eat to make themselves feel better. This is known as “comfort eating”.

Age is another factor, as you tend (趋于) to be less active when you get older. When you get older, you need to eat less, and if you do not eat less, you will put on weight.

Obesity can cause many health problems such as heart problems, high blood pressure and many other serious medical conditions.

【推荐2】Today’s Weather (December 8th)

【推荐3】China launched (发射) the Shenzhou XIII manned spacecraft (载人飞船) at 12:23 a.m. on October 16, 2021. Three astronauts stayed inside the country’s Tiangong space station for half a year. After doing some scientific research there, they returned to the earth.

Astronauts	Personal Information
	Zhai Zhigang was born in October, 1966 in Heilongjiang. He likes calligraphy (书法). He is the country’s first astronaut to take a spacewalk, having done it when he was a mission commander (指挥官) during the Shenzhou VII mission in September, 2008.
	Wang Yaping was born in January, 1980 in Shandong. She loves traveling and music. She is China’s second female astronaut to take part in a spaceflight and was a member of the Shenzhou X mission in June, 2013. The 42-year-old Wang became the first female astronaut to enter Tiangong space station to take a spacewalk.
	Ye Guangfu was born in January, 1980, too. He comes from Sichuan. He is interested in reading and basketball. He made his first journey to space.

【推荐1】What problems do the teenagers probably have? Here is a survey showing their main problems.