As we all know, sleep is very important and necessary. I would love everyone to develop the following four habits to have better sleep without needing the alarm（闹钟）wake-up call.

    {#blank#}1{#/blank#}If you eat much food an hour before you go to bed, your body will hate you, because your body needs time to digest while you are still awake.

    {#blank#}2{#/blank#}When I hear on TV that people just need 30-minute exercise a week, I think that's wrong. Every person should get 30-minute exercise every day. When you exercise, your body uses energy and feels tired. You have to recover from the tiredness. {#blank#}3{#/blank#} The harder you exercise your body, the faster it falls to sleep and the better it sleeps.

    Turn the TV off. There are a few shows I still watch, but they will never get in my way of (妨碍) sleep. The bedroom is only for sleeping and rest. {#blank#}4{#/blank#}.

    {#blank#}5{#/blank#}A question to ask yourself: If I didn't have an alarm, what time would I get up? If that time is the time you need to get up, you should probably throw away the alarm. If the time you actually get up is much later than the time you need to get up, make great changes to your way of life and the time you go to sleep. No one should need an alarm.

A. Exercise for at least 30 minutes every day.

B. Don't eat any food 4 hours before you sleep.

C. Throw away the alarm.

D. Sleep is one of the most important things in our lives.

E. Your body recovers when you are sleeping.

F. Try to get up as early as you can.

G. Take the TV out of your bedroom.

Things to Do in Atlanta This Weekend

    Start the year off by experiencing something new this weekend! Here are our favorite events picked for this weekend.

The Glenn Miller Orchestra at Spivey Hall, Saturday

    The music of Glenn Miller has an unusual sound. Combine that with the perfect sound affects at Spivey Hall, and you get a concert that is sure to have your toes tapping. And really, who doesn't love Challanooga Choo Choo?

Garden Lights at the Atlanta Botanical Garden, Saturday

    This is the last night for this annual light show at the Atlanta Botanical Garden. It is particularly unusual that the magical sound of frogs in the conservatory(温室) is not from a recording. That magic is coming from the real frogs that live there. If it's no too crowded, stop along the way, close your eyes and just listen.

    Children's Workshop: Egyptian Hieroglyphs(象形文字), Saturday

   Does your child dream of becoming a historian when he grows up? If you answer “yes”, you will want to take him to the Michael C. Carlos Museum. Participants will learn how to read and write ancient Egyptian hieroglyphs from Egyptologist Annie Shanley. Children will have an opportunity to discover the meaning of hieroglyphs on tomb reliefs and statues.

Colin Mochrie at Dad's Garage Theatre, Saturday and Sunday

    Set the tone for a great 2017 with laughter. Colin Mochrie comes to Dad's Garage Theatre and brings his lightning-quick creativity and humor.

    If you want to look at all the events happening this weekend, check out our full events calendar.

How northern Europeans beat the winter blues

    Ask a child from northern Europe to draw two pictures—one on a rainy day and a second in the sunshine—and this is what you will get: in the first, as raindrops fall from the top of the page, the man behind the window has an unhappy expression. When a yellow sun sends out some light from the corner, the man is smiling.

    Northern Europeans associate rain with sadness and sunshine with happiness. They think this is true because they are so aware of how their environment affects them{#blank#}1{#/blank#}In October 2008, a group of researchers examined the influence of different daily weather factors, including temperature,wind and sunlight, on 1,200 participants. The conclusion was that good or bad weather had little effect on people's feelings{#blank#}2{#/blank#} A person who is upset on dark or cold days suffers from a negative mood, and he will be likely to experience a sad winter. This is the basis of an illness called Seasonal Affective Disorder (SAD){#blank#}3{#/blank#} 

    AniKalayjian, professor of psychology at Fordham University, advises that we should take steps to strengthen the brain's system against weather-driven mood changes. Research on SAD has been focused on the brain's response to darkness and light. When our eyes detect darkness, the brain gives off melatonin, which starts sleep cycles{#blank#}4{#/blank#} It takes over to help us wake up and feel better when we detect light.“We can encourage people to take charge of their feelings,” says Kalayjian.“We tell them to leave the computers and the indoor games and get out there in the sun{#blank#}5{#/blank#}”

    A day of rain can potentially destroy your plan and affect your mood. But as the Scottish comedian Billy Connolly once said:“There is no such thing as bad weather, only the wrong clothing.”

A. Another chemical called serotonin, however, can make people happy.

B. It affects about10% of the population of northern Europe each year.

C. That's when people can recharge their serotonin and get a better mood.

D. Yet that link has no scientific basis.

E. Most studies prove that a negative feeling is associated with bad weather.

F. They determined that people actually differ in their sensitivity to weather changes.

G. It is seriously doubted among the people who suffer from SAD.

Tips to stay safe and make smart choices

    Even if you're a genius (天才) at school, you still might be lost when it comes to getting from point A to point B. Don't get caught in a strange place without these basic safety tips.

    Know where you're going.

    Before you set out in an unfamiliar area, go to Google Maps to plan your journey and print it out. {#blank#}1{#/blank#} Make sure that the location services are turned on your phone, just in case you get lost.

    Know where your stuff is.

    Never leave your backpack or shopping bags out of your sight. Carry your wallet in your front pocket or keep it close to your body. {#blank#}2{#/blank#} A fun day out can turn into the worst headache ever if you realize you've left something behind.

    {#blank#}3{#/blank#}

    If you have the choice between a busy street and a deserted one, always pick the busy one. You are more likely to be attacked on dark, empty sidewalks than on ones with a crowd.

    Travel in packs.

    Don't go anywhere — especially an unfamiliar place — without a friend or two. {#blank#}4{#/blank#}

    Don't let your music drown you out.

    There's nothing wrong with listening to your iPod as you walk around town, but keep it at a low enough volume (音量) so you can still hear passing cars. Losing concentration puts you at risk from accidents, attacks and getting lost. {#blank#}5{#/blank#} Don't do it. Keep your head up and pay attention to the people and things going on around you.

A. Pick your streets smart.

B. Always choose your own ways.

C. Be sure you've got everything at all times.

D. Take out your phone and call the police.

E. This also goes for texting while walking.

F. You can also use your phone's GPS to map the route.

G. If you must go out alone, be sure to tell someone where you're going.

    London (CNN) There is no God -- that's the conclusion of the well-known physicist Stephen Hawking, whose final book is published on Tuesday. The book Brief Answers to the Big Questions, which was completed by his family after his death, presents answers to the questions that Hawking said he received most during his time on Earth.

    Other bombshells(爆炸性事件)the British scientist left his readers with include the belief that alien life is out there, artificial intelligence could outsmart humans and time travel can't be impossible.

    "There is no God. No one directs the universe," he writes in the book." For centuries, it was believed that disabled people like me were living under a curse by God," he adds. "I prefer to think that everything can be explained another way, by the laws of nature."

    While Hawking spoke of his lack of belief in God during his life, several of his other answers are more surprising. "There are forms of intelligent life out there," he writes. "We need to be cautious about answering back until we have developed a bit further."

    "Travel back in time can't be ruled out according to our present understanding," he says. He also predicts that "within the next hundred years we will be able to travel to anywhere in the Solar System."

    In remarks prepared by Hawking and played at the launch of the book in London on Monday, the scientist also turned his attention to the world he was leaving behind. His greatest concern, his daughter said, "is how divided we've become," adding ,"He makes this comment about how we seem to have lost the ability to look outward, and we are increasingly looking inward to ourselves."

    Hawking's final message to readers, though, is a hopeful one. Attempting to answer the question "How do we shape the future?", the scientist writes, "Remember to look up at the stars and not down at your feet."

    Most people actually do not know how to do basic first aid on mild burns. It is normally taken for granted since most people think that soaking (浸泡) the burn with water is the way to go.{#blank#}1{#/blank#}

    Once the burn appears, you will surely feel much pain on the actual burned skin. Technically, this is the time to stay calm.{#blank#}2{#/blank#}Finding a source of running water is recommended. However, if there is none, any source will do. If there is running water, simply place the burned area under it and allow it to soak the water for about 5 to 10 minutes.{#blank#}3{#/blank#}If you have access to ice or a cold compress（冷敷布）, you can use that as well. You can place the ice or cold compress on the affected area and leave it there about 15 to 30 minutes. The ice will numb the pain and will also stop more injury on the skin.

    After soaking in water or cooling the area with ice, remove from the water source and allow the moisture to dry naturally. You may also consider patting it down dry with a towel or napkin, however, this could damage the burnt skin even more.{#blank#}4{#/blank#}

    As soon as the area dries up completely, get a bandage or a strip of cloth.{#blank#}5{#/blank#}This will protect that area from infection caused by outside dirt and dust getting into the open burn.

A. Call a doctor may as well help in most burn cases.

B. The thing is that treating a mild burn goes more than just soaking the affected part in water.

C. It is best to dry it naturally instead.

D. Wrap it around the burn to cover the open area of skin.

E. The truth is that soaking is the last thing to do to deal with mild burn.

F. The first thing you will need to do will be to find a clean water source.

G. This will relieve some of the pain, cool down the skin, and stop additional burning.