Body language is an important part of communication(交流). If you want to communicate well, it's important to understand how you can (and can't) use your body to say what you mean, especially when you're in a foreign country. If a person is bored, he won't look at the person who is talking to him. He will find other things to do. He may also keep looking at his watch or a clock. If a person is open to you, his arms and legs will not be crossed. And if a person is relaxed, you will know it by looking at his body, even his breathing is slower.

Here are some examples of body language:

    Dr. Michael Prager, a leading Botox expert, said that a growing number of women are developing something called “computer face”. He also mentioned that professionals who worked long hours in front of a screen were ending up with saggy jowls（颚骨下垂）,“turkey neck” and deep-set wrinkles（皱纹） on their forehead and around their eyes.

    The Botox expert said that, of all his clients, office workers were most likely to show premature （过早的）signs of aging. “ If you are one of the unfortunate people who frown（皱眉）while you are concentrating on the screen then, over time, you will inevitably（不可避免地） end up with frown lines.'' Dr. Prager said. “What is perhaps more surprising is the number of women with saggy jowls because they are sitting in one position for so long. If you spend most of the time looking down then the neck muscles shorten and go saggy, eventually giving you a second neck.”

    Dr. Prager, who has a practice near Harley Street in London, said he encourages his clients（客户） to put a mirror next to their computer so they can see if they are frowning at the screen. “When people are stressed or thinking hard about something, then they will often put on agrumpy（脾气暴躁的）face' without even knowing what they are doing. When my clients put a mirror next to their desk, they are often shocked by the angry, frowning face which stares back at them.”

    He said, “The women I am seeing at the moment have only been using computers at work for the last decade or so. But women in their 20s have grown up with them and use them for every single task. I think the problem is going to become much, much worse. In another ten years, they could be looking quite awful.”

    Dr. Prager said there were several simple steps which could avoid “computer face” such as regular screen breaks and stretching the neck muscles. And, of course, there was always Botox. He said that, after a couple of sessions of Botox, the habit of “grumpy face” could be broken.

    Jack Ma's net worth increased $2.8bn overnight as Alibaba forecast sales growth that topped every analyst's estimate, despite the fact that China's economy is slowing down.

    Mr. Ma, aged 52 this year, is now the richest person in Asia and 14^th wealthiest in the world, according to the Bloomberg Billionaires Index. His net worth has climbed $8.5bn this year to $（4）8bn.

    The latest surge came after China's largest e-commerce company forecast 45 to 49 percent revenue(收入) growth in the year ending March, demonstrating how investments beyond online shopping are paying off. Shares in Alibaba, where Mr. Ma is chairman, rose 13 percent to a record high.

    Alibaba and Tencent, which dominate online shopping and social media, respectively have ventured(冒险) deeper into new areas from cloud computing services to streaming music and video as the country's economy slows. Alibaba is capturing more digital advertising spending by incorporating(合并) social elements such as video in its shopping sites.

    Alibaba is holding meetings with investors this week. On Friday, the former English teacher said he wasn't going to discuss corporate forecasts. He took the stage instead to describe how his company had become effectively the world's 22^nd largest economy—just after Argentina—in terms of transaction(交易) by never fearing to think big. Mr. Ma, who said Alibaba revises 10-year plans annually, foresaw the company becoming the fifth-largest eventually by 2036 by serving a burgeoning Chinese middle classes, taking advantage of global trade and making use of its valuable data.

    Ma's comments about the evolution of data-driven technology echoed Masayoshi Son, Chairman of Japan's SoftBank. SoftBank—Alibaba's largest shareholder—has invested billions in companies such as ARM with the intention of staking out a leading position in the future Internet of Things.

    “The Internet of Things is going to be big because in the past, machines drink electricity,” Mr. Ma told investors. “In the next 20 years, machines will drink data. In the future, no company, no country, no business can survive without data.”

    The next generation of artificial intelligence (AI) may be sitting right beneath you, at least if furniture maker Ikea has any say in the matter. The Swedish furniture company's “future-living” research lab in Copenhagen is conducting a survey to understand what people want when it comes to smart furniture.

    AI is now walking into more aspects of people's daily lives. Self-driving cars are just around the corner, and AI robots can play and beat the best players of strategy games. As smart home technologies have become more ubiquitous, products ranging from smart electrical outlets（插座）to smart smoke alarms are flooding the market. Therefore, it's not surprising that Ikea would be moving in the same direction.

    Exactly why people would want their sofa or bed frame to speak to then, track their daily movements or offer help is not yet clear. Though Ikea's the new survey doesn't directly answer that question, it does provide a hint of what people would feel comfortable with. Most participants wanted a more human0like form of virtual（虚拟的）assistants, as opposed to one that is more robotic. In terms of the ideal gender（性别）of the assistants, the most popular choice was neither male nor female. Few wanted a religious form of AI.

    Just as with human friends, most wanted AI friends that were like them, affirming their own worldview. They wanted an AI assistant that was reasonably intelligent-that could collect data to predict what a person wanted before he or she asked, and that could prevent someone from making mistakes.

    This is not the first time that Ikea has set foot in the field or futuristic technologies. In addition to wireless charging tables and chainless bikes that never rust（生锈）, the furniture giant has also pictured smart kitchens that can cook the best meal. To decide on how intelligent you want your next sofa or bookshelf to be, you can take Ikea's survey online.

    Keeping a busy social life among lots of friends may keep people thinner than spending hours doing some exercises, according to scientists. They say that socializing and meeting with friends help increase levels of brown fat in the body which burns calories to produce heat.

    Living in an exciting social environment was found to reduce fat in mice's belly by half over four weeks, even if they ate more.US researchers say that social excitement aids weight loss by turning white fat into brown fat. White fat stores calories and makes us fatter, while brown fat burns energy to produce heat. Turning white fat into brown fat is extremely difficult, normally requiring long-term stay in cold conditions or exciting part of the body's nervous system.

    However, scientists from Ohio State University now think that having a busy social life is an even more effective way of changing white fat into brown fat. The team came up with their theory by studying the effects of various living environments on mice. Those, who lived alongside a greater number of mice, had more space and toys to excite themselves and they lost far more weight over the course of the study than their “couch potato” fellows.

    Study's author, Dr Mattew During whose team's findings appear in the journal Cell Metabolism, said,“I'm still amazed at the degree of fat loss that occurs.” Explaining how new technology had threatened face-to-face socializing, he added,“It's not just a sedentary (久坐的)lifestyle and high calorie foods, but an increasing lack of social activities.” Co-author Dr Lei Cao said,“Loneliness is a potential factor for cancer and death; it's equal to cigarette smoking to a certain extent. Social activities are very vital.”

There are many great GPS watches for you on the market. Now I'd like to recommend four such watches to you.

Polar Grit X Pro

Sapphire glass, which is tough and scratch- resistant, is typically an add-on or upgrade feature, so you'll be glad to know that the Polar Grit X Pro comes with this durable screen material. On top of that, Polar claims that the watch will withstand temperatures of -68 degrees up to 122 degrees F so you can stay connected on hikes in even the most extreme places in the world.

Price: $500

Amazfit GTR 3 Pro

If you want a watch to double as your fitness tracker and everyday watch, the Amazfit GTR 3 Pro is a good bet. It has 150+ sports modes. It pairs with your Alexa device, can make Bluetooth phone calls, has navigation, and tracks health measures like blood oxygen and stress levels, heart rate, and menstrual cycles.

Price: $230

Fitbit Charge 5

The Fitbit Charge 5 is perfect for those who only need a GPS watch to track basic fitness activities and personal health features like stress, heart health, sleep, and oxygen saturation. The price reflects that there are only 20 exercise modes and a water-resistance depth of 50 meters.

Price: $150

SkyCaddie LX5

This Bluetoothand Wi-Fi-enabled watch comes with 35,000 pre-loaded SkyGolf maps of golf courses worldwide, allowing you to reference the most detailed map of a golf course while you play.

Price: $300