The dog, later {#blank#}1{#/blank#} (name) Arthur, came up to a Swedish team while the members were sharing a meal in front of a 20_mile race stage through the rough area in Ecuador. One of the {#blank#}2{#/blank#} (athlete), Mikael Lindnord, took pity on the dog wandering near their table and fed {#blank#}3{#/blank#} meatball to it. And that meatball made them friends for life, as far as Arthur was concerned.

The extreme sport of adventure racing includes biking, hiking, and boating that challenge even the {#blank#}4{#/blank#} (strong) humans. Imagine a dirty stray（迷失的）dog trying {#blank#}5{#/blank#} (keep ) up. But Arthur {#blank#}6{#/blank#} (do) keep up. The dog followed the team as they got up to leave. {#blank#}7{#/blank#} (actual), he never stopped following them—swimming alongside the boat of the team, and taking on muddy(泥泞的)slopes when the team hiked.

    Arthur stayed alongside the team for the rest of the {#blank#}8{#/blank#} (compete),but not without cost to his well—being. The dog needed doctor's attention after the six-day race was finished {#blank#}9{#/blank#} the team helped Arthur as much as they could during the event. Arthur's hard work paid off: Lindnord decided to adopt(收养) the dog {#blank#}10{#/blank#} brought him back to Sweden.

    Happiness means different things to different people. For Mary, who has {#blank#}1{#/blank#} severe sleeping problem, happiness is as simple as having a good night's sleep.

    Bed was once a place {#blank#}2{#/blank#} Mary went to rest after a long, hard day. {#blank#}3{#/blank#}, she has not had a full night's sleep in almost six months. Her doctor said that{#blank#}4{#/blank#}(count) sheep might help her fall asleep. She tried this, but soon got tired of it after it failed to work. She finds the nights without sleep almost {#blank#}5{#/blank#}(bear) . She is always sleepy and lacks energy during the day.

    Mary is not alone. Studies show that more than one in three people worldwide struggle with getting enough sleep. It often takes on different {#blank#}6{#/blank#}(form) : some people can get to sleep, but wake up much too early; some get a full night's sleep, but are {#blank#}7{#/blank#}(disappoint)  to find that they still feel tired when they wake up; others, like Mary, find {#blank#}8{#/blank#} difficult to fall asleep in the first place.

    Specialists say that people should not worry too much about this problem. In most cases, a lack of sleep {#blank#}9{#/blank#}(cause) by anxiety and pressure. It is important to keep yourself {#blank#}10{#/blank#} good spirits and to be positive. 

    Once upon a time a very strong woodcutter asked for a job in a timber merchant, and he got it. The pay was{#blank#}1{#/blank#}(real) good and so were the work conditions. For that reason, the woodcutter was determined to do{#blank#}2{#/blank#}(he) best. His boss gave him an axe（斧头）and showed him the area（地区）,{#blank#}3{#/blank#}he was supposed to work. The first day, the woodcutter{#blank#}4{#/blank#}(bring) 18 trees. “Congratulations,” the boss said. “Go on that way”. Very{#blank#}5{#/blank#}(motivate) by the boss's words, the woodcutter tried harder the next day, {#blank#}6{#/blank#}he could only bring 15 trees. The third day he tried even harder. But he could only bring 10 trees. Day after day he was bringing fewer and{#blank#}7{#/blank#} (few) trees. “I must be losing my {#blank#}8{#/blank#}(strong), ” the woodcutter thought. He went to the boss and apologized, {#blank#}9{#/blank#}(say) that he could not understand what was going on. “When was the{#blank#}10{#/blank#}time you sharpened your axe? ” the boss asked. “Sharpen? I had no time to sharpen my axe. I have been very busy trying to cut trees. ”

    To Be Joyful, To Be Young

    What really works to make sustainable changes in diet and lifestyle? It's probably not what you think. In the past 30 years of conducting clinical research, I {#blank#}1{#/blank#}(learn) that real keys are pleasure, joy and freedom. Joy of living is sustainable; fear of dying is not.

    Why? Because life is to be enjoyed. There's no point {#blank#}2{#/blank#}(abandon) something you enjoy unless you get something back that's even better, and quickly. When people eat more healthfully, {#blank#}3{#/blank#}(quit) smoking, and manage stress better, they find they feel so much better, so quickly. It reconstructs the reason for making these changes from fear of dying to joy of living.

    When you exercise and eat right, your brain receives more blood flow and oxygen, so you become smarter, have more energy, and need less sleep. Two studies showed just walking for three hours per week for only three months caused so many neurons(神经细胞) {#blank#}4{#/blank#}(grow) that it actually increased the size of people's brains!

    Your face receives more blood flow, so your skin glows more and wrinkles less. You look younger and more attractive. In contrast, an unhealthy diet, lasting emotional stress and smoking reduce blood flow to your face {#blank#}5{#/blank#}you age more quickly. Smoking speeds up aging because nicotine contributes to your blood vessel becoming narrower, {#blank#}6{#/blank#}decreases blood flow to your face and makes it wrinkle prematurely. This is why smokers look years older than they really are.

    One of the most interesting findings was that the mothers' awareness of stress was more important than {#blank#}7{#/blank#}was objectively occurring in their lives. {#blank#}8{#/blank#}(give) a questionnaire, the women were asked to rate on a three-point scale how stressed they felt each day. The women who realized they were under heavy stress had significantly shortened and damaged telomeres(染色体端粒) compared with {#blank#}9{#/blank#}who felt more relaxed. Contrarily, some of the women who felt relaxed {#blank#}10{#/blank#}raising a disabled child had more normal-appearing telomeres.

In other words, if you feel stressed, you are stressed.