Different weather makes people feel different. It influences health, intelligence(智力) and feelings.

    In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is very hot at some times and very cold at other times. People in these states(州) have more heart trouble after the weather changes in February or March.

    The weather can also influence intelligence. For example, in a 1983 report by scientists, IQ(智商) of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% lower. The wind can help people have more intelligence. Very hot weather, on the other hand, can make it lower. Students in many schools of the United States often get worse on exams in the hot months of the year (July and August).

    Weather also has a strong influence on people's feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. But fat people may have a hard time in hot summer. At about 18℃, people become stronger.

    Low air pressure(气压) may make people forgetful(健忘). People leave more bags on buses and in shops on low-pressure days. People feel best at a temperature of about 18℃.

    Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather's problem.

    There are many beaches in Hong Kong. Some of the beaches are the best in the world. There are some toilets (厕所) , changing rooms (更衣室) and stores to buy food or drinks on most of the beaches. People like going to the beaches and have fun swimming. You can swim there without (没有) danger if you follow these rules：

    ◆Never swim alone (独自).

    ◆Don't stay in the water for a long time.

    ◆Never swim after a meal or when you feel hungry or tired.

Remember：A red flag (旗帜) means it is dangerous for anybody to go into the water. A blue flag means that it is dangerous for children.

How to be a friend of yourself?

We often pay attention to developing relationships with others. However, we forget the basic step: being friends of ourselves. How can we have good relationships with others if we don't even have good relationships with ourselves?{#blank#}1{#/blank#}.

First, forgive(原谅) yourself. It's true that you are not perfect, and neither is everybody else. It's normal for everyone to make mistakes.{#blank#}2{#/blank#}.

Second, accept things you can't change. There are many things you cannot change, such as your background and past.{#blank#}3{#/blank#}If you face the things you can't change, just smile and move on.

Third, focus on(聚焦于) your achievements. You can try making a list of your achievements, which do not have to be big things. There are a lot of small but important achievements in our life.{#blank#}4{#/blank#}

Last but not least, stop comparing yourself with others. You are unique.{#blank#}5{#/blank#} Your success is not determined(决定) by other people. Instead, it is determined by your own life purpose.

    Most teens need more than 9 hours of sleep each night. But about 1 in 4 teens has trouble in sleeping. Lack of sleep can affect everything from our feelings to how well we focus on tasks like studying. It can also influence sports performance, increase our chances of getting sick, and may lead to weight gain in some people.

    How can we get the sleep we need? Here are some ideas:

    Be active during the day. Get at least 60 minutes of exercise a day. Physical activity can decrease stress and help people feel more relaxed. Just don't work too close to bedtime because exercise can wake you up before it slows you down.

    Say goodnight to electronics. Experts suggest using the bedroom for sleep only. At least shut everything down an hour or more before lights out.

    Keep a sleep routine. Going to bed at the same time every night helps the body expect sleep. Creating a bedtime routine can improve this relaxation effect. Reading, listening to music, spending time with a pet, writing a diary or doing anything else can relax you.

    Expect a good night's sleep. Instead of worrying that you won't sleep, remind yourself that you can. Say "Tonight, I will sleep well." several times during the day. It can also help to practise breathing exercises or gentle exercises before bed.

    Everyone has a sleepless night once in a while. But if you regularly have trouble in sleeping and you think it's affecting your mood or performance, talk to your doctor.

    What is the hardest sport in the world? Some people say it's boxing (拳击), because boxing is dangerous and boxers have to be strong and fast. Other people say the hardest sport is soccer.

    However, most people say the hardest sport is the triathlon (三项全能运动). A triathlon is a race that includes three sports. First, racers swim. After that they ride bicycles and finally they run. In the most common triathlon, racers swim 1.5kilometres, bike 40 kilometres, and run 10 kilometres. The winner is the person who finishes the race first.

    There is another kind of triathlon too. It is called the "Ironman Triathlon (铁人三项)". This triathlon is much longer. People who finish this triathlon are called "ironmen" or "ironwomen". This is because these people are so strong that their bodies are just like iron (铁).

    In the past, there were other races including three sports. However, they didn't use the word "triathlon". That word was first used to describe a race in California in 1974.

    Triathlon racers have to train very hard for their races. Many of them swim and run. A lot of people also do things like yoga (瑜伽). They have many different ways to prepare, but they all have the same goal. They want to be in perfect shape.

    To be an ironman or an ironwoman, you have to be strong and smart. You should know how to save energy during the race.