【推荐2】Most of us spend our lives surrounded by screens, which offer us convenience as well as connection and an ocean of information. But since it’s easy to feel pressured to keep up with every notification, technology may feel more like a burden than a blessing. Thus, the idea of “digital detox” is becoming increasingly inviting.

The phrase “digital detox” describes getting rid of TV, phones, computers and other forms of technology that control our lives for a period of time. Some experts advocate completely avoiding unnecessary screen time for 30 years. Others suggest using an app that will limit the amount of time one can spend on certain websites. A third option is logging out in evenings or on weekends. Others simply turn their phones off at scheduled times. Some even pay high prices to take vacations in places where they can unplug from their digital routine.

Why might you want to take a digital detox? Perhaps you find that you are spending longer than you intend on certain apps or that they distract you from more important things. Perhaps social media is depressing because you compare yourself to others or you fear missing out on things that other people are enjoying. Constant negative news can also give rise to a lot of stress.

Technology can also have physical effects. Many people experience back or neck pain as a result of bending over screens. The blue light coming from most screens can also affect people’s sleep by preventing production of melatonin(褪黑素).

Giving up all screens may not be realistic, but strategic breaks from technology may be good for your body, mind, emotions and relationships. It is high time that you picked a time to turn off your devices and focus on really important things.

【推荐3】Some of the world’s most significant problems never hit headlines. One example comes from agriculture. Food riots and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world’s major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.

The authors take a vast number of data points for the four most important crops: rice, wheat corn and soybeans. They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.

There are two worrying features of the slowdown. One is that it has been particularly sharp in the world’s most populous countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse.

Second, yield growth has been lower in wheat and rice than in corn and soya beans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Corn and soybeans are more important as feed grains. The authors note that “we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world.”

The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organization has argued.

Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to revert to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.

【推荐1】Since the very year I was born, South Jersey has been a part of me. Since both of my grandparents have lived in the area for many decades, my family has visited South Jersey yearly since 2014. Its warm and lively feel is very appealing to many families that are looking for an easy and fun getaway.

Every summer we pile into the car and drive four hours away to the Seaview Hotel and Club, a wonderful place which is located in Galloway, 20 minutes from the beach and boardwalk (木板人行道). The Seaview is enticing and quite inexpensive as well, which is perfect for any family. The rooms are neat, and the breakfasts are a real attraction, even to adults. I have always loved going down to their lovely outdoor swimming pool in the mornings and then ordering a lunch from The Coastal Grille, the hotel’s main restaurant. The Seaview is really great，and somewhere else is even more exciting.

At the end of every day in South Jersey, my family always makes it an important goal to drive to the local beach and boardwalk, Ocean City. Ocean City is wonderful with great swimming, lots of pizza places, ice cream stands, and excellent rides and games.

After dinner, we always check out “Gillian’s Pier,” the impressive and exciting, yet small amusement area located on the boardwalk. It is lots of fun to ride on bumper car (碰碰车) and rollercoaster and to taste soft serve ice creams and cotton candy. Next door, there is even a video arcade (游戏厅), so overall South Jersey is your classic family summer vacation. I would definitely recommend visiting, even just for a weekend, someday.

【推荐3】We are often so attracted by the promises of modern digital life that we fail to notice its danger. It’s that feeling of losing control that we get a dozen times a day, from when we get distracted with our phones in a discussion to when we can’t appreciate a private moment without sharing it with virtual audience.

In my first attempt to get control over my technology use, I set my phone to vibrate rather than ring. Soon after, another problem appeared. The act of continually checking the phone became a habit. I knew then that using only tips to permanently reform digital life is difficult. We should go past the notification settings on our devices or apps and consider the more essential topic of why we use so many apps in the first place. What all of us who are struggling with these challenges need is a technology usage philosophy, something that explains from the ground up which digital tools we allow into our lives, why, and under what conditions.

Cal Newport, a professor of computer science defines Digital Minimalism as a“philosophy of technology use in which you focus your online time on a small number of carefully selected activities that strongly support the things you value, and then happily miss out on everything else”.

To do so, however, we cannot passively allow the tools and apps provided by the Internet age to control how we spend our time or how we feel. Instead, we must take steps to draw the positive aspects of these technologies while sidestepping the negative aspects.