Sandra Bullock turned 51 last month. But because she looks exactly the same as she did in Miss Congeniality, a movie filmed back in the 20^th century, everyone calls her “ageless.” Bullock is just one of a number of stars in their 40s and 50s who've had birthdays recently but have not gotten older, unlike the rest of us in their age group. Take Halle Berry. One website put a photo of her 20 years ago next to one of the newly 49-year-old Berry and dared us to choose which was which. “This Is What 49 Looks Like,” it said. Seriously, if that's what 49 looks like, I must be 71.

    However, even a generation ago, famous faces evolved. Look at a picture of Grace Kelly at age 52 in the early 1980s. She looks like a beautiful middle-aged woman. Today she'd look old for her age.

    The goal now is to prevent aging while you are still young, using all the magical nonsurgical options medicine has to offer. Eventually these techniques will become less expensive, and ordinary people my daughter's age will have them. Already anti-aging is starting to be considered maintenance, like coloring your hair. My friends and I find ourselves openly debating techniques that we used to make fun of. Does fat-freezing work? How much time do you have to spend in the gym to keep the body of a 35-year-old after 50? It's all so exhausting. But members of the next generation have it tougher. They'll have to ask themselves whether they want to spend their youth trying not to get old. I've already seen “Sexy at 70” headlines. Will everyone be expected to go to their graves(坟墓) looking hot?

    I also have to wonder what else we are slowing along with age. How do you move on if you're working so hard to stay the same? And besides, if you've known the ache of watching a daughter pack up for college, you know you can't stop the clock.

    “I never wanted to come on this stupid hiking trip!” Jeff's voice was panicked. His father stopped and turned to look at the boy.

    “This is hard on you, son. But you've got to come through with your courage.”

    “But I am scared!” Jeff shouted.

    “Please have enough love for your brother to think this through!” His father replied, “We just don't have the time to stop. And I don't know if I can make it without stopping every so often. While you're only ten, you're strong and fast. Do you remember the way back from here to the road, if you had to go alone?”

    Jeff flashed back to the painful scene of his seventeen-year-old brother Mark at their campsite. He'd been bitten by a snake during a rough hike. He needed medical attention right away. Worse still, their cell phone was dead.

    “Jeff? Could you make it to Flint without me? You can get help there.”

    Jeff nodded, said goodbye to his father and continued climbing over the rocks. The rocks and branches threatened his footing and speed, but stone by stone, he made his way up the valley.

    Jeff turned and made the final climbing-up toward the road. When he reached it, he rested himself, breathless. “Can't stop,” he thought. “Mark's in big trouble Keep going.” Just as he pulled himself upright, a truck sped by, heading for Flint " Hey!” he shouted excitedly, waving both arms. The truck stopped, "Jump in, boy! What's up? "The driver asked, Jeff got in and explained. Immediately the driver reached for his cell phone. “Help! Help! Better get the helicopter in there,” he seemed to be shouting into his hand. But Jeff wasn't sure about that because everything got unclear and then went black and quiet.

    Hours later, Jeff opened his eyes to find himself in a hospital, with his father nearby. His father told him that the helicopter airlifted Mark to the hospital and he would be fine in a few days. His father hiked himself out of that valley and took a ride from someone to the town. “You're a hero, son,” his father finally said with a smile.“ You saved Mark.”

A

    One warm summer morning, Elizabeth, the nanny（保姆）of the William's, went back from outside with the little boy, Josh. When she stepped into the house from the front door, she could tell that something was wrong, but she couldn't point a finger at exactly what it was. Just as she was about to dash out to find Josh, the little boy ran from behind her back, straight into the house for his toys.

    That's when she heard footsteps coming down the stairs. Her heart missed a beat. Knowing that Josh's parents were not home, she ran inside the house, caught the little boy swiftly and headed straight for the gate. She hit the neighbor's door heavily to seek help and called the police.

    When David William returned home and checked the monitor, what he saw scared the life out of him. A strongly built middle-aged stranger walked around the house and searched every corner, being careful not to miss any valuables（贵重物品）. And the most frightening for David was to see him even slipping into Josh's room. It was also terrifying to see that he was on his phone with someone guiding him on what to do. When Elizabeth opened the front door, he realized it was time to leave. He ran out just a few moments after Elizabeth and the boy left, getting away from the police.

    The Williams feel so grateful to Elizabeth for what she has done daily and saving their little boy when she could have easily run leaving the child behind. Elizabeth is called “supemanny” by the family. But Elizabeth said it was just her normal duty. “When his parents are away, they put their trust in me to keep him safe.” Although she is still terrified at the thought of what could have happened if she had come face to face with that man, she is willing to continue doing her work.

    We've all experienced the feeling that comes when your phone makes a sound to tell you that its battery level is low. It often comes at the worst times—when you're out on a trip and don't have a charger（充电器）, or when you're expecting an important phone call.

    Indeed, this feeling is so common that South Korean electronics manufacturer LG has given it a name: low battery anxiety（低电量焦虑）.

    According to a survey of 2,000 US adults conducted by the company last year, 90 percent of respondents said that they panic if their battery level reaches 20 percent or lower. And last month, UK telecommunications service provider found that around 15. 5 million Britons live in “constant fear” of their mobile phones running out of power, according to a survey by the company.

    “The problem is not about being unable to make calls, but is rooted in the fact that smartphones are now where we store digital memories,” noted the Daily Mail, However, battery worries don't just affect smartphone lovers. Many owners of electric vehicles also suffer from so-called “range anxiety”. This refers to the concern that the vehicle may not make it to its destination before the power runs out. Meanwhile, it isn't just low power that people worry about. A study carried out by South Korea's Sungkyunkwan University and China's City University of Hong Kong found that many of us also worry about not having constant access to our phone.

    This condition is known as homophobia, short for “ no mobile phone phobia（恐惧症）”. Symptoms include feeling uncomfortable when access to one's phone isn't possible, being unable to turn off your phone, and constantly topping up the battery to make sure it never dies.

    So, why do so many people treat their smartphone with such importance? The reason may be that they keep us connected to the people around us, and if we're unable to use our phone, we feel like we're cut off from our social life.

    With products with bigger batteries being released all the time-such as Xiaomi's Mi Max smartphone range or Tesla's Model S cars-battery anxiety may hopefully soon be a thing of the past.

    A few months after Wu Xingu was congratulated by teachers for graduating from the university, the 23-year-old has been making his dream of relieving tens of thousands of teachers in China from drowning in marking papers(改卷) a reality.

    Yitiku, an online software system based on Wu's idea, eases the workload of teachers by doing many of the functions that they did, such as selecting the test questions, forming an exam paper, and preparing exercises for the students.

    The features of Yitiku may sound quite simple, but this idea won his company millions of dollars from China's Internet giant Tencent in January. The unexpectedly successful fund raising story became a popular conversation starter among the people in the education business.

    "I can say it's quite an achievement for me and our company. As far as I know, I'm the first CEO born after 1990s that Tencent has invested (投资) in, and we are the first online education company they have invested in." Wu Xingyu told China Daily.

Different from other online companies that treat students as clients (客户), Yitiku has chosen teachers as their focus. "We make the work of teachers easy. Usually it takes two to three hours for them to prepare a new exam paper. Now it's just three clicks." said Wu. He is quite satisfied with the major feature of the software.

    Sitting in his 10-square-meter office in Zhonguancun, a hub of innovation (创新) in Beijing, Wu looks confident and chatty when talking about his business. His fast-speed answers give people an impression that he has years of experience in the online education sector. The fact is that he had been putting most of attention in directing courses at an art college until about a year ago.

    Recently a friend of mine asked me whether I'd seen the TV series Cook' Table. Of course, I hadn't because I'm not that into food. But I do get hungry for adventures sometimes, so I decided to watch the show. This is when I was introduced to the cook Francis Mallmann.

    He makes choices; he doesn't plan. When he was young, he looked for mentors (导师) and experiences, not books or paths. He honored his roots but embraced the world and sought things and places he didn't know. He isn't content with just one lifestyle and he doesn't bend to expectations. This made me puzzled because I grew up thinking I had to have a plan and have long-term stability in front of me.

    When I saw Mallmann doing what makes him happy, everything changed. I thought to myself, "That's how we're supposed to live." I felt as if I'd stood up from a comfortable fireplace and the blanket of my life just fell to the ground. I submitted my leave of absence application to my employer less than a month later. I'm now full of excitement. I'm leaving my job and a good salary, and I'm going to do things that feed my soul.

    Michael Kernis and Brian Goldman, psychologists at Clayton State University in Georgia, studied the benefits of authenticity (真实性) and being true to yourself. Some of the benefits of following your inner voice include enjoying a strong sense of purpose in life, greater confidence, healthier relationships and strong skills.

    I might soon be hungrier and poorer than I was before but at least I'll be staying true to who I am and I'll get the true freedom.