A new international study shows that some people's biological clock plays a powerful role for their life expectancy, regardless of lifestyle choices.

    Published in the latest issue of Aging on Wednesday, the study has found the most definitive evidence to explain why some people keep healthy lifestyle but die younger than others.

    Geneticist Steve Horvath from the University of California, Los Angeles (UCLA), led a team of 65 scientists around the world to record age-related changes to human DNA, analyse blood samples collected from 13, 000 people and estimate their lifespan.

    A higher biological age, regardless of actual age, consistently predicts an earlier death, the study says.

    "You get people who are vegan, sleep 10 hours a day, have a low-stress job, and still end up dying young," Horvath said in a statement. "We have shown some people have a faster innate aging rate."

    The findings discovered that 5 percent of the population ages at a faster biological rate, which translated to a roughly 50 percent higher than average risk of death at any age.

    "The great hope is that we find anti-aging interventions that would slow your innate aging rate," Horvath said, adding that "this is an important milestone to realizing this dream."

    "Do you have any idea how hard it is to be a kid?"My 7-year-old daughter once asked me.My initial reaction to her complaint was eye-rolling,along with thinking,“Being a kid is hard?Are you kidding me?”as I mentally ticked off（用记号勾出）all the hard things that her mama does.

    However,as I thought about it a bit more,I realized how silly my reaction had been.Yes,as we adults look back on our childhood,being a kid seems carefree and easy and full of fun.Coloring at school!Playing games!Riding bikes! How could that be hard?So I asked my daughter why being a kid was so hard.

    Her first answer didn't surprise me."Well,because you don't have your own phone,and you can't eat in the living room."

    I asked if anything else was hard about being a kid."Someone else is the boss of you,"she replied.

    I thought some more.What else is hard about being a kid?Well,sometimes,we don't really take kids seriously.

    There are times when I've responded to my children's tears with "It's not that bad,"or"You don't need to be upset about that."Because I believe that a cancelled playdate or a lost toy is no big deal.But for little ones,it is.

    We don't intentionally ignore these opportunities for connection,but sometimes,in busy moments of parenting, we respond unskillfully.We don't take our children's view,and we miss an opportunity to practice compassion（同情心）.

    China is a big country, and there is no simple answer to the question “When is the best time to visit China? ” There are two best times to visit China, depending on your preference.

    October

    Things to do: hike on the Great Wall, photography tour

    Places to visit: Beijing, Xi'an, Shanghai, Guilin, Jiuzhaigou, Chengdu

The best time to go to China is early autumn (October).

    Most of China has warm temperatures, and the summer rains have stopped (apart from around HongKong and Sanya) so it's pretty dry. The autumnn colours are also amazing. It is quiet at tourist attractions for most of the month, as the summer holiday travel crowds have gone. But try to avoid October 1st -7th, which is the Chinese National Day holiday, as attractions, transport and hotels are packed with Chinese tourists and prices go up a lot.

    Late Spring (April to May)

    Things to do: appreciate flowers, Li River cruise, ethnic festivals

    Places to visit: Beijing, Xi'an, Guilin, Huangshan, GuiZhou, Zhangjiajie

    The second-best time to travel to China is probably in April and May, when the flowers are in bloom and the temperatures are warming up. In late spring, temperatures across China are getting into the 20s (℃), except the extreme northwest and northeast. While the North of China is still dry, the summer rains have already begun in the South. This could actually improve the view in the form of mountain fog in mountainous areas like the Li River and the Yellow Mountains.

    Ethnic festivals in GuiZhou are concentrated in April and May, such as the Sisters' Meal Festival. If you are interested in Miao and Dong ethnic cultures, this is a good time to visit.

    Travel prices are average: cheaper than June to October, but more expensive than the lower season from November to March.

    In a world with limited land, water and other natural resources (资源), the harm from the traditional business model is on the rise. Actually, the past decades has seen more and more forests disappearing and globe becoming increasingly warm. People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable (可持续的) ways. That means growth with low carbon or development of sustainable products. In other words, we should keep the earth healthy while using its supply of natural resources.

    Today, sustainable development is a proper trend in many countries. According to a recent study, the global market for low-carbon energy will become three times bigger over the next decades. China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy revolution. It is now trying hard to make full use of wind and solar energy, and is spending a huge amount of money making electric cars and high-speed trains. In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil (棕榈油), which is produced without cutting down valuable rainforest. In recent years the markets for sustainable products have grown by more than 50%.

    The major challenge of this century is to find ways to meet the needs of growing population within the limits of this single planet. That is no small task, but it offers abundant new chances for sustainable product industries.

    An earthquake is one of the most common natural disasters. It may cause great damage. So it is wise to learn some simple safety tips to protect yourself or your family members.

    Fragile items like those made of glass are easily broken and should usually be placed on a lower surface, near the ground instead of placing them in the cupboards higher up. Never place them near your bed, sofas and other furniture where you would be sitting or lying down. When there is a strong movement, these pieces will fall on the floor directly and not on you.

    There is a strong chance of short circuits (短路) and fire during an earthquake. Make sure you turn off electrical connections and gas immediately when an earthquake happens.

    During an earthquake, lie beneath an object that is not easily damaged. Do not go near objects that could directly fall on you. Never use the elevator to go down. Stay inside until the shaking stops and it is safe to go outside. Research has shown that most injuries happen when people inside buildings try to go out. Use the staircases at all times.

    If you are outdoors, do not take shelter under a tree, streetlights, electric poles or tall buildings. If you are driving, stop your car and stay in a safe place. Do not park your car under a tree or any tall object.

    If trapped in debris (瓦砾堆), cover your mouth with a handkerchief or clothing. Tap on a pipe or the wall so that rescuers (营救人员) can find you. Use a whistle (哨子) if one is available. Never shout for help. Shouting can cause you to breathe in dangerous amounts of dust. Do not light a match because you may burn yourself. Do not move about or kick up dust.

What's On Stage

An acrobatic (杂技) show: To celebrate its 50th anniversary, the China Acrobatic Troupe will present "The Soul of China"， where the seemingly impossible is made real. Chills (寒战) will run down your spine (脊柱) as you watch breathlessly as performers take their art and their bodies to the edge.

Time: 7：30 pm, September 13－19

Place: Capital Theatre, 22 Wangfujing Dajie, Dongcheng District

Exhibitions

Joint Show: A group ink painting exhibition is running at the Huangshicheng Art Gallery in Beijing. About 50 works by 25 young artists including Ge Yun and Yu Yang are on display .

Time: 9：00 am－5：00 pm until September 10

Place: Huangshicheng Gallery, 136 Nanchizi Dajie, Dongcheng Distirct

Oil paintings: The Wanfung Art Galley will host a joint show of oil paintings by 10 young and middle­aged artists. On display are more than 30 of their latest works, which capture (捕捉) the wondrous variety of life in unique (独特的) styles .

Time: 9：00 am－4：00 pm until September 15

Place: 136 Nachizi Street, Dongcheng District

Literature (文学) museum: The National Museum of Modern Chinese Literature offers an indepth study of the evolution of Chinese contemporary literature from 1919 to 1949.

Time: 9：00 am－4：00 pm, daily

Place: 45 Anyuan Donglu , Chaoyang District (Shaoyaoju area)

Concerts

Beijing rocks: "The Fashion Night of Chinese Rock" is set to bring rock fans out by the thousands next month. Nine Chinese rock bands will perform at the concert, including older generation bands, middle generation and some recent arrivals. The audience (听众) will be given a chance to decide what songs they want to hear, which is sure to bring a storm.

Time: September 16

Place: The Olympic Center

Belgium Orchestra (管弦乐队): La Petite Bande, the Baroque Orchestra of Belgium will perform in Beijing at the Grand Theatre of the Cultural Palace of Nationalities as part of activities across the world to commemorate (纪念) the 250th anniversary of Bach's death .

Time: 7：30 pm, September 11－14

Place: Grand Theatre of the Cultural Palace of Nationalities