Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.

    “I think we are knocking at the door of immortality (永生),” said Michael Zey, a Montclair State University business professor and author of two books on the future. “I think by 2075 we will see it and that's a conservative estimate (保守的估计).”

    At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology (纳米技术) make it likely that humans will live in the future beyond what has been possible in the past. “There is a great effort so that people can live from 120 to 180 years,” he said. “Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”

    However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.

    Scientists also differ on what kind of life the super aged might live. “It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Centre. “At present people who could get to that point are not in good health at all.”

    Humans and gorillas shared evolution for 23 million years. Their paths separated only six million years ago. Research on how gorillas communicate can help us understand human language development.

    Understanding how the brain works helps us see a connection between language development and non-verbal signs. These signs or movements include things like the way we move our hands or bodies or the different expressions our faces have in different social situations. A new study on gorillas showed that the right side of the body is controlled by the left part of the brain and it is also the location for language development.

    Two cameras were used to film all of one ape's movements. One of the first results was that gorillas use their right hands more when they are doing actions with their heads or mouths at the same time. This shows that there is a connection between how our brain works and the reason we use one side of our body more than the other. In addition, we can use the results of the study and our knowledge about brains to help us understand more about how language first developed in humans.

    Dr Forrester, who did the study, says the results can be useful in other ways, such as understanding language development in children. For example, some children have serious illness called “autism” which can stop them communicating normally with people. It might be possible to use the same study method to find out which children have this illness when they are very young. Doctors will then be able to start treatment early.

    Can I talk about salary at work? In a word: yes. As HR company Insperity put it in a recent blog post: Can your employees discuss their salaries or wages with their co-workers? Yes. Even if you have a company policy against it? Yes.

    The freedom to discuss your salary at work is a protected right under federal labor law. The National Labor Relations Act of 1935 protects your right to discuss the conditions of your employment, including issues related to safety and pay, even when you're not protected by a union.

    Talking about salary with colleagues can be uncomfortable, since there's such a taboo about discussing money matters, but it's an important step towards achieving equal pay for equal work. One barrier, however, stems from how we think of our own financial worth. Too many people I talk to wrongly consider their salary a reflection of their worthiness, a statement about their skills, experience, or value. At the end of the day, if we can all separate our self-worth from our salaries a bit more, it'll become easier to talk frankly with our colleagues.

    Asking about money outright can be tough, so one trick I've picked up along the way is to ask for your colleagues to confirm or deny. For instance, you might volunteer your salary first and ask "Does that sound about right to you?" by way of comparison. Or, let's say you're interviewing for a promotion to become a manager. You might ask a fellow manager about the kind of salary you should expect by saying, “I'm seeing salaries for this kind of position ranging from $65, 000 to$70, 000—does that seem accurate to you?" This way, even if your colleague isn't comfortable sharing their salary outright, they can help you identify if your expectations are on point or way off.

My Favourite Books

    Jo Usmar is a writer for Cosmopolitan and co-author of the This Book Will series（系列）of lifestyle books. Here she picks her top reads.

    Matilda

    Roald Dahl

    I once wrote a paper on the influence of fairy tales on Roald Dahl's writing and it gave me a new appreciation for his strange and delightful words. Matilda's battles with her cruel parents and the bossy headmisres, Miss Trunchbull, are equally funny and frightening, but they're also aspirational.

    After Dark

    Haruki Murakami

    It's about two sisters-Eri, a model who either won't or can't stop sleeping, and Mari, a young student. In trying to connect to her sister. Mari starts changing her life and discovers a world of diverse "night people" who are hiding secrets.

    Gone Girl

    Gillian Fynn

    There was a bit of me that didn't want to love this when everyone else on the planet did but the horror story is brilliant. There's tension and anxiety from the beginning as Nick and Amy battle for your trust. It's a real whodunit and the frustration when you realise what's going on is horribly enjoyable

    The Stand

    Stephen King

    This is an excellent fantasy novel from one of the best storytellers around. After a serious flu outbreak wipes out 99.4% of the world's population, a battle unfolds between good and evil among those let. Randall Flagg is one of the scariest characters ever.

    Traveling by subway can sometimes be quite an adventure, especially during rush hour. There are the times when you have to avoid cups of coffee that could spill (溅) on you. The smells of some passengers' food are very strong, too. According to the Beijing subway passenger regulations, which went into effect on May 15th, passengers except babies and the sick are no longer allowed to eat or drink on the subway. Violators (违反者) who do not stop after being asked to will be asked to get off. The violation will also be recorded in the violators' credit record.

    Some support the rule. The reason is that the smell of food and drink can annoy other passengers. "The smell of food fills the carriage, causing people discomfort, especially in the hot summer. Besides, eating on the subway produces rubbish. And on subway trains, people often spill their drinks," said Zheng Yiou, 17, a student from Hefei.

    However, others question this rule. "Some citizens live so far from their work places that they have limited time to have breakfast before they go to work. Eating while they travel saves them time and decreases the chance that they will be late for work," He Songlin, a 17­year­old student from Chengdu said, "And some people, like those with low­ blood sugar levels, get sick if they can't eat when they must."

    Other Chinese cities like Nanjing and Chengdu have similar regulations. Some foreign cities also ban eating and drinking on the subway. For example, eating and drinking have long been banned on the subway in Washington DC. Singapore fines people who eat or drink on the subway up to 500 Singapore dollars, which is RMB 2,417 yuan.

    Chen Yanyan, a professor from Beijing University of Technology, believed we should consider the need of some people to eat or drink on the subway. "Commuters (上班族) and travelers are sometimes too busy to eat. Maybe we could learn from Tokyo, where there are many subway stations equipped with services, allowing passengers to eat and drink," she said.

"One of the reasons I find this topic very interesting is because my mom was a smoker when I was younger." says Lindson-Hawley, who studies tobacco and health at the University of Oxford.

By studying about 700 adult smokers, she found out that her mom quit the right way—by stopping abruptly and completely.

In her study, participants were randomly assigned to two groups. One had to quit abruptly on a given day, going from about a pack a day to zero. The other cut down gradually over the course of two weeks. People in both groups used nicotine(尼古丁) patches before they quit, in addition to a second form of nicotine replacement, like gum or spray. They also had talk therapy with a nurse before and after quit day.

Six months out, more people who had quit abruptly had stuck with it—more than one-fifth of them, compared to about one-seventh in the other group. Although these numbers appear low, it is much higher than if people try without support.

And the quit rates were particularly convincing given that before the study started, most of the people had said they'd rather cut down gradually before quitting. "If you're training for a marathon. you wouldn't expect to turn up and just be able to run it. And I think people see that for smoking as well. They think, "Well, if I gradually reduce, it's like practice." "says Lindson-Hawley. But that wasn't the case. Instead of giving people practice, the gradual reduction likely gave them cravings(瘾) and withdrawal symptoms before they even reached quit day, which could be why fewer people in that group actually made it to that point. "Regardless of your stated preference, if you're ready to quit. quitting abruptly is more effective." says Dr. Gabriela Ferreira."When you can quote a specific number like a fifth of the patients were able to quit, that's convincing. It gives them the encouragement, I think, to really go for it."Ferreira says.

People rarely manage to quit the first time they try. But at least, she says, they can maximize the odds of success.