Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wild bees' nest and take the honey from it. Often, these nests are high up in trees, and it is difficult to find them. In parts of Africa, though, people and animals looking for honey have a strange and unexpected helper—a little bird called a honey guide.

    The honey guide does not actually like honey, but it does like the wax(蜂蜡) in the beehives(蜂房). The little bird cannot reach this wax, which is deep inside the bees' nest. So, when it finds a suitable nest, it looks for someone to help it. The honey guide gives a loud cry that attracts the attention of both passing animals and people. Once it has their attention, it flies through the forest, waiting from time to time for the curious animal or person as it leads them to the nest. When they finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches. Some of the honey, and the wax, always falls to the ground, and this is when the honey guide takes its share.

    Scientists do not know why the honey guide likes eating the wax, but it is very determined in its efforts to get it. The birds seem to be able to smell wax from a long distance away. They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lit.

    A great French writer says that we should help everyone as much as possible because we often need help ourselves. The small even can help the great. Then he tells a simple story. An ant is drinking at a small stream and falls in. She tries to reach the side but makes no progress at all. The poor ant, almost exhausted, is still doing her best when a bird sees her. Moved with pity the bird throws a blade of grass into the water. It supports(支撑) the ant like a boat, and the ant reaches the bank. When she is having a rest in the grass, she sees a man walking along barefooted and carrying a gun in his hand. He wants to kill the bird nearby. When he raises his gun to fire, the ant bites him in the foot. So he stops to look down and the bird flies away quickly. It is an animal much weaker and smaller than herself that has saved her life.

    I'm a strong believer that learning different languages makes you look incredibly good when you're in a foreign country and can understand and speak the language. The list below is 4 apps that will help you learn a foreign language! You can download them for free.

    Babbel – Learn Languages

    Babbel is an excellent language tool to help you progress step by step with learning a new language. It helps you learn grammar along the way as you work your way through the tasks and assignments. The downside is that for full access to everything you need to pay a monthly subscription, but this will still be cheaper than taking physical lessons with a tutor!

    Duolingo: Learn Languages Free

    The app has many languages to choose from and will work through the basics all the way to advanced words and sentences. It's all completely free too! It's incredibly well designed, looks great and will help you learn, remember and progress with just a little bit of time every day.

    Tandem: Language Exchange

    Rather than have you work through tasks and memorize different things, the app lets you match with people who share your interests but speak the language you want to learn. You can then have text, voice and video conversations with people who want to learn your native language, and in return you learn theirs, all by simply communicating with each other. It's a great way to learn with only $1 a day.

    Learn English – busuu

    This app is perfect if you want to learn English. There are all sorts of audio and visual learning aids. You'll find yourself working through interactive tests and learning tools for vocabulary and dialogue.

    Young people's mental health is of increasing interest and concern to researchers, policymakers, and families alike－but can treating teenagers' mental health problems also improve the wellbeing of their parents? New research suggests that it can. The study, conducted by Kelsey Howard, a doctoral candidate at Northwestern University, found that regardless of which treatment teenagers were using for their depression, the mental health of their parents improved too.

    Older findings say that there is a link between mothers' depression and major depression in their teenagers, although it seems not to be biological. However, the latest research suggests that the relationship between parents' and their children's mental health might work in the other direction too.

    While Howard's research hasn't evidenced a clear reason for this trend, she told The Atlantic: “If the family members interact with (交往) each other well, the kid will be more pleasant to be around and make less negative statements, which will affect how other family members think.”

    Tom Madders, director of campaigns at YoungMinds, told HuffPost UK that for parents, watching their children go through mental health problems can be difficult, especially if they feel responsible. Madders also noted that parents often make big lifestyle changes, say, giving up their jobs, to support their children with depression, particularly in cases where their children have to leave school because of their mental health problems. However, Madders thought this can only make things worse. “Parents' sacrifice adds pressure to the delicate shoulder owners,” he said.

    The process of waiting to get treatment can also be an added stressor: “Every day we get calls to our helpline from parents whose children have been waiting months for an initial assessment, or left on long waiting lists for treatment that they need … that's why it's important that the Government commits to long-term extra investment in children's mental health services.”

    I always feel sorry for world leaders busy dealing with fights between nations. When my three children were young, most days it was hard to keep my house from becoming a battlefield.

    It got worse as they grew older. Three years ago, Zack, then 16, couldn't make it through a day without making his sisters, Alex 11 and Taryn 9, angry.

    My husband and I tried to be understanding the boy at such an age. We reasoned, punished, and left heartfelt notes on his bed about how he was hurting our family. His answer was "I say it because it's true."

    I even tried telling the girls to fight back. Bad idea. Now I had three children at war. Whatever I said to them, they paid no attention. When there was no way out, I told everything to my sister, Mary, in an email. She replied, "Don't email me. Email him."

    Our son was online every day, mailing and talking with his friends. Maybe he would actually hear me this way. I didn't say anything different, but email just took the tension away. There'd be no shouting or door banging. Zack wouldn't feel under attack.

    Zack didn't reply for days. When he finally did, his entire message was four small words. I smiled when I read them: "You're right. I'm sorry."

    The children still fought, of course, but Zack changed. Best of all, I now have a better way to talk with not one but three of them. I like it that they don't tune me out as much as they used to. They like not having to listen to me shouting to them. Or as Alex says, "You're so much nicer online."

    All I know is that the house is quiet. But we're talking.

    Doing business nowadays without a cellphone? Living a very private life? I can't imagine it anymore.

    Journalist Chris Stokel-Walker explained it very well: For the average working person, there's no greater feeling than powering down your computer and kissing goodbye to your work emails for the day. If we're lucky enough to disconnect from the job on evenings and weekends, we're overjoyed to leave work emails and the stress that comes with it in the office.

    But experts say we're increasingly failing to do so, instead bringing the burden home with us and dealing with emails during our free time. Unsurprisingly, this routine has some serious consequences.

    Working abnormal or long hours has long been linked with depression(抑郁症), anxiety and even heart disease. In addition, the importance of weekend recovery has also been linked with weekly job performance and personal initiative(主动性). And further research showed psychological detachment(脱离) during off-work time reduced emotional exhaustion caused by high job demands and helped people stay engaged.

    So, if we know all this, it begs the question: Why are we still letting work bother our precious weekend? According to Cary Cooper, professor of Organizational School, the recent trend even spills into the way we access our work communications and projects.

    Today, says Cooper, work emails are just a tap of a smartphone away. "You don't carry your laptop around when you're out to dinner, but you do carry your mobile phone," he says. "The smartphone does not make up for what is lost." So delete your work email account from your inbox(收件箱), and leave the worries until Monday.