Our body clock, or natural body rhythm, influences our energy and alertness. Paying attention to it can help us choose the suitable time of the day when we best perform specific tasks.

    The reality, however, is that most of us organize the time around work demands, school deadlines, commuting or social events. Doing whatever the body feels like doing is a luxury in today's fast-paced modern society.

    But that doesn't mean it isn't worth trying. Obeying our body clock has significant health benefits. Disrupting our natural body rhythm, on the other hand, has been linked to problems such as depression, obesity, or headache, says Steve Key, a biology professor.

    When the body clock can synchronize (使…同步) the rhythms of its natural processes, it “gives us an advantage in daily life”, says Key.

    According to him, when it comes to cognitive (认知的) work, most adults perform best in the late morning. As our body temperature starts to rise just before awakening in the morning and continues to increase until midday, our memory, alertness and concentration gradually improve.

    However, he adds, our ability to concentrate typically starts to decrease soon thereafter. Most of us are more easily distracted (分心) between noon and 4 pm.

    Alertness also tends to fall after eating a meal and sleepiness tends to peak around 2 pm, making that a good time for a nap.

    Surprisingly, tiredness may increase our creative powers. For most adults, problems that require open-ended thinking are often best dealt with in the evening when they are tired, according to a study in the journal Thinking & Reasoning.

    When choosing a time of the day to exercise, paying attention to your body clock can improve results. Physical performance is usually best from about 3 to 6 pm, says Michael Smolensky, a professor of biomedical engineering.

    Of course, not everyone's body clock is the same, making it even harder to synchronize natural rhythms with daily plans.

    New research shows sheep are clever

    People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests found that the sheep can map the area they live in, and some may even be able to plan ahead.

    Young fish prefer noisy neighbors

    A new study has shown that young fish like to live on reefs (暗礁) with noisy neighbors! Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, compared with noisy animals! The scientists compared the choice to a music fan wandering around at a music festival, choosing to set up a tent closest to the music they like best!

    Butterflies are disappearing

    A new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.

    Most painters discover a style of painting that is fit for them and stick to that, especially if people admire their pictures. But Picasso, the great Spanish painter, was like a man who had not yet found his own particular style of painting. He kept on struggling to find the perfect expression till his death in 1973.

    Some of Picasso's paintings are rich, soft colored and beautiful. Others are ugly and cruel and strange. But such paintings allow us to imagine things for ourselves. They force us to say to ourselves, “What does he see that makes him paint like that?” And we begin to look under the surface of the things we see.

    Picasso painted thousands of pictures in different styles. Sometimes he painted the natural look of things. Sometimes he seemed to break them apart and throw the pieces in our faces. He showed us what the mind knows as well as what the eyes see. At the age of 90,he remained as curious about the world as he had been when he was young. That is why people have called him “the youngest painter in the world.”

    Last April, on a Sunday, we took one of our “nowhere” drives. My husband was quietly driving along a back road. I was occupied in the front passenger seat watching the scenery.

    I noticed out of the corner of my eye that my husband was struggling to look out of my window. This frightened me, since his eyes should be on the road in front of him. I asked him what he was looking at out of the windows, and he quietly replied, “Nothing.”

    After a few minutes, I looked over at my husband and noticed a tear running down his cheek. I asked him what was wrong. This time he told me, “I was just thinking about Pop and a story he had once told me.” It had something to do with Pop, his friend from childhood, and I wanted to know the story, so I asked him to share it with me.

    He said, “When I was 8 years old, Pop and I were out fishing and he told me that the pine trees know when it is Easter.”

    I have no idea what he meant by that, so I pressed him for more information.

    He continued on… “The pine trees start their new growth in the weeks before Easter because spring is drawing near. If you look at the tops of the pine trees, you will see the yellow shoots. As the days get closer to Easter Sunday, the tallest shoot will branch off and form a cross. By the time Easter Sunday comes around, you will see that most of the pine trees will have small yellow crosses on all of the tallest shoots.”

    I turned to look out of the window and I couldn't believe my eyes. It was a week before Easter, and you could see all of the trees with the tall yellow shoots stretching to the sky.

    The tallest ones shone in the sunlight like rows of tiny golden crosses. May you find your Easter season filled with beautiful golden crosses!

    I was in a rush as always, but this time it was for an important date I just couldn't be late for! Thinking of my upcoming evening, I hurried into a store to pick up some flowers, for I did not want to be late for this date. When I paid the bill at a checkout counter, I found myself behind an elderly woman who seemed in no hurry when she paid for her groceries. She looked up at me and smiled. It was a nice smile –warm and friendly –and I returned her gift by smiling back.

    “Must be a special lady, no matter who will be getting those beautiful flowers,” she said.

    “Yes, she's special,” I said, and then to my embarrassment, the words kept coming out.

    “It's only our second date, but somehow I am just having the feeling that she's 'the one'. Jokingly, I added,“The only problem is that I can't understand why she'd want to date a guy like me.”

    “Well, I think she's very lucky to have a boyfriend who brings her such lovely flowers and who is obviously in love with her,” the woman said.” “My husband used to bring me flowers every week –even when times were hard and we didn't have much money. Those were wonderful days; he was very romantic and – of course – I miss him after he died.

    I paid for my flowers as she was gathering up her groceries. I walked up to her, touched her on the shoulder and said,“You were right, you know. These flowers are indeed for a very special lady.” I handed her the flowers and thanked her for such a nice conversation.

    It took her a moment to realize that I was giving her the flowers I had just bought.“You have a wonderful evening,” I said. I left her with a big smile and my heart warmed as I saw her smelling the beautiful flowers.

    I remember being slightly late for my date that night and telling my girlfriend the above story. A couple of years later, when I finally worked up the courage to ask her to marry me, she told me that the story I had told her that night helped me win her heart.

A Wild Child's Guide to Endangered Animals

From New York Times bestselling author Millie Marotta comes this gorgeous celebration of the animal kingdom. Highlighting 43 endangered species, the book takes readers on a trip around the world while learning about rare and well-known animals and their habitats.

Marcovaldo

Marcovaldo is a collection of 20 short stories written by Italo Calvino. Describing the life of a poor rural man living in northern Italy, the stories unfold according to the seasonal cycle of a year. Common themes in the stories include pollution, failure and poverty.

The Art of Mondo

Over the years, Mondo has received global recognition for its incredible art posters that bring to life classic films, television shows, and comics such as Jurassic Park. For the first time, The Art of Mondo brings together this highly sought-after art in one volume that showcases the incredible creativity of the studio's artists whose vastly different styles are united by one guiding principle: limitless passion for their subject matters.

The Coming of the Third Reich

There is no story in 20th-century history more important to understand than Hitler's rise to power and the collapse(坍塌) of civilization in Nazi Germany. The Coming of the Third Reich, by Richard Evans, offers a masterful combination of academic work, important new research and interpretations.

Patriarchy and Capitalism

Chizuko Ueno, a leading Japanese sociologist, feminist critic and public intellectual, has been a pioneer in women's studies and the author of many books, including Patriarchy and Capitalism.