Solar storms shake Earth's magnetic field(磁场). They not only influence human technology, but also animals, reported Forbes.

    Studies show that many animals use changes in Earth's magnetic field to find directions. These changes provide the animals a general compass(指南针) for south and north. Animals can also use them as landmarks.

    For example, scientists have found special cells in part of a bird's eye nervous system(神经系统). They seem to react to changes in the magnetic field.

    Some fish species, like the common trout，have cells with magnetic sensors in their nasal cavity(鼻腔). In 1994 "magnetic sense" was also discovered in sea turtles.

    Some whale species may use magnetic sense to navigate (导航) the oceans. A dysfunction of this sense may explain the still mysterious beachings (动物搁浅). Sometimes several hundred animals, such as whales and dolphins, are driven out of water along beaches. They usually can't breathe under their own weight and die slowly.

    Many scientists believe our love of sugar may actually be an addiction (上瘾). When we eat or drink sugary foods, the sugar enters our blood and influences parts of our brain that make us feel good. Then the good feeling goes away, leaving us wanting more. All tasty foods do this, but sugar has a particularly strong effect. In this way, it is in fact addictive, and doctors suggest we all cut down on it.

    "It seems like every time I study an illness, I find my way back to sugar," says scientist Richard Johnson. One-third of adults worldwide have high blood pressure (血压), and up to 347 million have diabetes (糖尿病). Why? "Sugar, we believe, is one of the reasons, if not the main reason," says Johnson.

    Our bodies are designed to survive on very little sugar. Early humans often had very little food, so our bodies learned to keep sugar as fat. In this way, we had energy stored for when there was no food. But today, most people have more than enough. So the very thing that once saved us may now be killing us.

    So what is the solution? It's obvious that we need to eat less sugar. The trouble is, in today's world, it's extremely difficult to avoid. From breakfast cereals to after-dinner desserts, our foods are increasingly filled with it. Some manufacturers (制造商) even use sugar to replace taste in foods that are advertised as low in fat. This may make the food appear as healthier, but large amounts of sugar are often added.

    But there are those who are fighting back against sugar. Many schools are offering more fruit instead of deserts. Other schools are building facilities for students to do exercise. The battle has not yet been lost.

    DNA is the whole" map" of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.

    People have been trying to understand the human body for a long time. In 1860, Mr. Mendel discovered why we look the same as other people in our family. It is because of small things called "genes" (基因)in our body. In 1953, two scientists, Watson and Crick, found out that genes are really messages. They're written in the DNA with a special language.

    In 1961, another two scientists found the first" word" that they could understand in that language. It shows how DNA tells the cell(细胞)to build its parts. So far, scientists have found all the words in the DNA map, but we still don't understand what they all do. By understanding what just one" word" means, we can help to save people from several illnesses. So the more we understand, the more doctors will be able to do.

    Most people hope that this can help to make better medicine to help sick people. Other people worry that when we learn more" word" and find out more information, we will use it in the wrong way. Just to make people more attractive, or stop sick people getting jobs.

How to lower costs and improve the living quality?

There are numerous products posted on social media, and you might believe an electric toothbrush, Luna facial cleaning massager, a flight ticket to. Phuket and so on will bring you a better life. But for many graduates or those who have worked for only one or two years, your income cannot keep pace with（跟上） expense. {#blank#}1{#/blank#}Here are some tips:

Keep running or doing yoga

It seems to be a challenge to afford a fitness center costing over 10,000 yuan in annual fees or for a personal trainer. But you can buy a pair of sneakers or a yoga mat instead. Running in a park regularly or doing yoga at home using free online resources is definitely a type of quality life. {#blank#}2{#/blank#}

Go to museums or libraries

Chasing young good-looking stars, watching their films and buying expensive tickets for their concerts are popular with many young people. {#blank#}3{#/blank#} You seem to fail to take into account（考虑到） a variety of exhibitions and resources updated frequently in major cities. Why not have a try? What you need to do is to choose themes that you are interested in, make an online appointment in advance and then enjoy your weekend.

{#blank#}4{#/blank#}For some young people, the easy access and the discounts of online shopping make it really attractive. Sometimes what you buy online is not what you really need and the demands are created by the producers. For example, many young people buy new clothing that they don't wear. {#blank#}5{#/blank#} Money is not the only thing that can drive your quality of living, but your optimistic attitude towards life and self-disciplined way of life are.