A warm drink of milk before bed has long been the best choice for those wanting a good night's sleep. But now a study has found it really does help people nod off-if it is milked from a cow at night.

    Researchers have discovered that “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepy and reduce anxiety.

    The study, by researchers from Seoul, South Korea, involved mice being fed with dried milk powder made from cows milked both during the day and at night.

    Those given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those fed with the milk collected during daytime, according to the study published in The Journal of Medicinal Food.

    Night milk quickened the start of sleep and caused the mice to sleep longer.

    While the effect of cows milk harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.

    Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content, which helps people to relax.

    Milk is also sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening. The more fat you take in before bedtime, the greater burden you will put on your body at night.

    On October 31st, 2009, Chinese famous scientist Qian Xuesen, died in Beijing when he was 98 years old. He is famous as “the country's father of space technology and king of rocketry”.

    Qian was born in 1911 in Hangzhou. He left for the United States after winning a scholarship to graduate school in 1936. He studied at the Massachusetts Institute of Technology and later at the California Institute of Technology.

    Qian began his career in the US and was regarded as one of the brightest minds in the new field of aeronautics（航空学) before returning to China in 1955.

    After he returned, Qian set up the first missile（导弹）and rocket research institute（学院) of China. The institute later helped start Chinese space program. He led the development of China's first nuclear-armed ballistic missile (弹道导弹) and worked on its first satellite.

    He retired in the year before Chinese manned space program was launched in 1992. But his research formed the basis（形成基础）for the Long March CZ -2F rocket that carried astronaut Yang Liwei into orbit in 2003.

    In August, 2009, Chinese Premier Wen Jiabao visited Qian and praised him for devoting his life to Chinese defense technologies. Qian told him, “I'm trying to live to be 100 years old”.

My First Marathon（马拉松）

    A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only two weeks to train. Yet, I was determined to go ahead.

    I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. I didn't do either well. He later informed me that I was ＂not athletic＂.

    The idea that I was ＂not athletic＂ stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!

    The night before my marathon, I dreamed that I couldn't even find the finish line. I woke up sweating and nervous, but ready to prove something to myself.

    Shortly after crossing the start line, my shoe laces(鞋带) became untied. So I stopped to readjust. Not the start I wanted!

    At mile 3, I passed a sign: ＂GO FOR IT, RUNNERS!＂

    By mile 17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.

    By mile 21, I was starving!

    As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.

    I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.gkstk

    Determined to be myself, move forward, free of shame and worldly labels(世俗标签), I can now call myself a ＂marathon winner＂.

    You have heard the words “that which does not kill you makes you stronger”. I have found it true. But I also believe in the philosophy that we are not defined (定义) by what happens to us, but by what we do when things happen to us.

    Some friends think we have had far more than our share of bad things occur, but I don't think bad things are shared. They are events that occur as the result of many aspects, sometimes far past our control or even knowledge of them. I am also a firm believer in the laws of unintended consequences — one event causes things that are quite unexpected, sometimes positive, sometimes not.

    So as I considered the question of “What motivates me?” and sought an answer, it struck me that I simply refuse to be defeated. I won't let life or events tear me down to the point at which I am no longer me, or simply stop being.

    In 2008, I battled three types of cancer, had four cancer operations, the firm I worked for closed without notice, my wife was in a horrible car accident, got laid off from her company, the economy devastated our life savings, … and that was for starters.

    We also lost two family members and my closest friend. He was the last person I would expect to pass away out of our friends. But a disease took hold of him 9 years earlier. His memorial service was filled with love, and many of us told about his joy of life, humor, his achievements, and the challenges he had overcome in his life — which were many and painful. He would not be defeated in his life either.

    Today, my wife and I are hand-in-hand, continuing trying to live our lives with dignity, although living it differently from the end of 2007.

    In 2001, British Prime Minister, Tony Blair said," We celebrate the diversity(多样性) in our country, get strength from the cultures and the races that go to make up Britain today."

    People from all cultures and races can be found in every corner of Britain and each person in his or her own way has contributed to making Britain the place it is today.

    If you walk down a street in Britain, especially in the bigger cities, you will usually see people with different hair, skin and eye colors. They may have white, brown or black skin and blonde, brown, black or red hair, with blue, black, brown or green eyes. Many of the people you will see will be British people but they all look different because the people of Britain are a mixed race.

    Britain is and has always been a mixed race society. Early in the British history they were invaded by Romans, Saxons, Vikings and Normans armies and later Africans were brought to Britain by force in the seventeenth and eighteenth centuries as slaves or servants. Over the years, thousands of people have been forced by persecution(迫害) or hunger to leave France, Ireland, Russia, and other countries, and have settled in Britain.

    About 8% of the population of Britain today are people from other cultures and races. That is 4.6 million people. According to a BBC report in September 2005, immigration (移民) made up more than half of Britain's population growth from 1991 to 2001.The Guardian newspaper reported in 2007 that the number of immigrants to the UK was 145,000 a year.

    People moving to Britain have brought their own cultures with them and try to keep them alive. An excellent example of this is the Notting Hill Carnival which celebrates the Caribbean culture and is now a very big part of British life today.

    Passenger pigeons (旅鸽) once flew over much of the United States in unbelievable numbers. Written accounts from the 18th and 19th centuries described flocks (群) so large that they darkened the sky for hours.

    It was calculated that when its population reached its highest point, there were more than 3 billion passenger pigeons—a number equal to 24 to 40 percent of the total bird population in the United States, making it perhaps the most abundant bird in the world. Even as late as 1870 when their numbers had already become smaller, a flock believed to be 1 mile wide and 320 miles (about 515 kilometers) long was seen near Cincinnati.

    Sadly the abundance of passenger pigeons may have been their undoing. Where the birds were most abundant, people believed there was an ever-lasting supply and killed them by the thousands.

    Commercial hunters attracted them to small clearings with grain waited until pigeons had settled to feed, then threw large nets over them, taking hundreds at a time. The birds were shipped to large cities and sold in restaurants.

    By the closing decades of the 19th century, the hardwood forests where passenger pigeons nested had been damaged by American's need for wood, which scattered (驱散) the flocks and forced the birds to go farther north, where cold temperatures and storms contributed to their decline. Soon the great flocks were gone, never to be seen again.

    In 1897, the state of Michigan passed a law prohibiting the killing of passenger pigeons but by then, no sizable flocks had been seen in the state for 10 years. The last confirmed wild pigeon in the United States was shot by a boy in Pike County, Ohio, in 1900. For a time, a few birds survived under human care. The last of them, known affectionately as Martha, died at the Cincinnati Zoological Garden on September 1, 1914.