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.

    Last year, around Labor Day, I read a “Happy Ad” in our local newspaper. There was a lady in a local nursing home for the aged, who was celebrating her 90th birthday and her family wanted everyone to know about it. It said that if you wanted to drop her a line, here was her address. So I did. I found a birthday card and dropped her a short note, wishing her a happy birthday.

    A week or so later, someone knocked at my front door. I opened the door and found a middle-aged man standing on my doorstep. He introduced himself as the son of this woman to whom I had sent the card. He explained that he just wanted to drop by in person and thank me for sending such a nice card to his mom. Apparently, like many older folks, she did not receive much mail and was quite excited to receive mine. I just didn't know what to say. I told him it was my pleasure and that I hoped his mom had enjoyed her birthday.

    That year, I did not send out any Christmas cards, except to this lovely old lady in the nursing home. I just told her that I was thinking about her and hoped that she had a nice holiday. I sent her a holiday card and also a couple of notes in between. I just thought she might like to have someone write to her, to get some mails.

    She passed away a couple of months ago. I never met this lady, but I did keep her and her family in my thoughts. I dropped them a line of sympathy. I hope that my few little notes were enough to brighten a couple of her days here on earth.

    It feels like every time my mother and I start to have a conversation, it turns into an argument. We talk about something as simple as dinner plans and suddenly, my mother will push the conversation into World War 3. She'll talk about my lack of bright future because I don't plan to be a doctor. And much to her disappointment, I don't want to do any job related to science, either. In fact, when I was pushed to say that I planned to major (主修) in English and communications, she nearly had a heart attack.

"Why can't you be like my co-worker's son?" she bemoans all the time. Her coworker's son received a four-year scholarship and is now earning 70,000 dollars a year as an engineer. I don't know what to answer except that I simply can't be like Mr. Perfect as I've called the unnamed co-worker's son. I can't be like him. I am the type of the person who loves to help out in the community, write until the sun goes down, and most of all, wants to achieve a career because I love it, not because of a fame or salary.

    I understand why my mother is worried about my future major. I've seen my mother struggle to raise me on her small salary and work long hours. She leaves the house around 6:30 am and usually comes home around 5 pm or even 6 pm. However, I want her to know that by becoming a doctor, it doesn't mean I'll be successful. I'd rather follow my dreams and create my own future.

Foreign visitors to the UK might be disappointed when they learn that not everyone there speaks like Harry Potter and his friends. Usually, there's an assumption by many non-Brits that everyone in Britain speaks with what's known as a Received Pronunciation (RP, 标准发音) accent, also called "the Queen's English". However, while many people do talk this way, most Britons speak in their own regional accents.

    Scouse, Glaswegian and Black Country – from Liverpool, Glasgow and the West Midlands – are just three of the countless non-RP accents that British people speak with. There are even differences in accents between towns or cities just 30 kilometers apart. What is even more disappointing is that not speaking in a RP accent may mean a British person is judged and even treated differently in their everyday life.

    In a 2015 study by The University of South Wales, videos of people reading a passage in three different UK accents were shown to a second group of people. The group then rated how intelligent they thought the readers sounded. The lowest-rated accent was Brummie, native to people from Birmingham, a city whose accent is considered working class.

    However, there is no need to be disappointed though you are not speaking in an RP accent. In fact, doing the opposite may even give you strength.

Kong Seong-jae, 25, is an internet celebrity from Seoul. After studying in the UK, he picked up several regional accents. He's now famous for his online videos, where he shows off the various accents he's learned. "British people usually get really excited when I use some of their local dialect words, and they become much friendlier. I think it makes a bit of bond between local people and foreigners to speak in their local accent," he said.

    So if you're working on perfecting your British accent, try to speak like someone from Liverpool, Glasgow or Birmingham. You may not sound like Harry Potter, but you are likely to make more friends.

    The month of March was a milestone for supporters of renewable energy in the U.S. For the first time, wind and solar power accounted for more than 10% of the country's electricity—up from less than 1% at the turn of the century. And total wind and solar power-plant capacity(发电量) is expected to grow more than 30% over the course of this year and next, according to the Energy Information Administration.

    Such forecasts have led many scientists and policymakers to think that moving a large part of the nation's power supply to renewable sources—as cities from Miami Beach to Salt Lake City have promised to do—may not be as far-fetched as once thought. But like any debate, there are dissenters, including those inside the federal government. Their argument is that the nation demands an uninterrupted supply of electricity and cannot count on sun, wind and natural gas to provide it. “You need solid hydrocarbons(固体碳氢化合物) on-site for rising peak demand,” Environmental Protection Agency administrator Scott Pruitt said on Fox Business in May, referring to the importance of coal as a power source.

    Many experts say the government's concern fails to account for how the power grid(电网) has improved in recent decades. Utility companies(公共事业公司) have developed innovative ways to move electricity from place to place to account for variation in weather. Battery technology can store power for use when renewable sources cannot operate, meaning solar power can be used on days when the sun doesn't shine. And the nation's vast supply of natural gas can be turned into usable energy with the flick of a switch.

    “I don't think 5 or 10 years ago I'd be comfortable telling you we could not sacrifice reliability when we're going to have 35% of our energy come from wind,” said Ben Fowke, CEO of the utility company Xcel Energy, at a recent conference. “I'm telling you, I'm very comfortable with that today.”

    Indeed, many parts of the country are already close to that reality. In some regions, like Iowa and Kansas, renewable energy supplies more than 25% of the electricity. The market has shifted so far in favor of natural gas and renewable energy that even the most concerted federal effort is unlikely to stop its growth. Any attempt to slow the growth of wind and solar will face strong pushback. “If anyone wants to do away with it,” Republican Senator Chuck Grassley told Yahoo News of the federal government's potential cuts to wind energy, “he'll do it over my dead body.”

    But the federal government could slow the acceleration—and with billions of dollars in private and public investments at risk, the pace of change matters. Decisions made today will shape the future of the nation's energy grid for decades to come.

    I sat with my friend in a well-known coffee shop in a neighboring town of Venice. As we enjoyed our coffee, a man called the waiter and placed his order, “Two cups of coffee, one on the wall.” We got interested and observed that he was served with one cup of coffee but he paid for two. As soon as he left, the waiter attached a piece of paper to the wall saying “A Cup of Coffee.” Similar occasions took place twice while we were there. It seemed that this gesture was quite normal at this place. However, it was something unique and confusing for us.

    After a few days, when we again enjoyed coffee there, a man entered. The way this man was dressed did not match the standard or the atmosphere of this coffee shop. Poverty was evident from his looks. As he seated himself, he looked at the wall and said, “One cup of coffee from the wall.” The waiter served coffee to this man with respect and dignity. The man had his coffee and left without paying. We were amazed to watch all this when the waiter took off a piece of paper from the wall and threw it in the dustbin.

    Now it was no surprise for us; the matter was very clear. The great respect for the needy shown by people in this town moved us to tears.

    Coffee is not a necessity. However, the point is that when we take pleasure in any blessing, maybe we also need to think about those people who also appreciate that specific blessing but cannot afford.

    Note the waiter, who gets the communication going between the affording and the needy with a smile on his face. Think about the man in need: he enters the coffee shop without having to lower his self-dignity; he has a free cup of coffee without asking or knowing about who has given this cup of coffee to him; he only looked at the wall, placed an order for himself, enjoyed his coffee and left. Besides, we need to remember the role played by the wall that reflects the generosity and care of people in this town.