Internet use appears to cause a decline in psychological well-being（安康）, according to research at Carnegie Mellon University.

    Even people who spent just a few hours a week on the Internet experienced more depression and loneliness than those who logged on less frequently, the two-year study showed. And it wasn't that people who were already feeling bad spent more time on the Internet, but that using the Net actually appeared to cause the bad feeling.

    Researchers are puzzling over the results, which were completely contrary to their expectations. They expected that the net would prove socially healthier than television, since the Net allows users to choose their information and to communicate with others.

    The fact that Internet use reduces time available for family and friends may account for the drop in well-being, researchers suggested. Faceless, bodiless “virtual”（虚拟的）communication may be less psychologically satisfying than actual conversation, and the relationship formed through it may be shallower. Another possibility is that exposure to the wider world via the Net makes users less satisfied with their lives.

    “But it's important to remember this is not about the technology perse; it's about how it is used,” says psychologist Christine Riley of Intel, one of the study's sponsors. “It really points to the need for considering social effects in terms of how you design applications and services for technology.”

    Like many other people, I love my smart phone, which keeps me connected with the larger world that can go anywhere with me. I also love my laptop，because it holds all of my writing and thoughts. In spite of this love of technology, I know that there are times when I need to move away from these devices and truly communicate with others.

    On occasion, I teach a course called History Matters for a group of higher education managers. My goals for the class include a full discussion of historical themes and ideas. Because I want students to thoroughly study the materials and exchange their ideas with each other in the classroom, I have a rule —no laptop, iPads, phones, etc. When students were told my rule in advance of the class, some of them were not happy.

Most students assume that my reasons for this rule include unpleasant experiences in the past with students misusing technology. There's a bit of truth to that. Some students assume that I am anti-technology. There's no truth in that at all. I love technology and try to keep up with it, so I can relate to my students.

    The real reason why I ask students to leave technology at the door is that I think there are very few places in which we can have deep conversions and truly engage complex ideas. Interruptions by technology often break concentration and allow for too much dependence on outside information for ideas. I want students to dig deep within themselves for inspiration and ideas. I want them to push each other to think differently and make connections between the course materials and the class discussion.

I've been teaching my history class in this way for many years and the evaluations reflect student satisfaction with the environment that I create. Students realize that with deep conversation and challenge, they learn at a level that helps them keep the course materials beyond the classroom.

I'm not saying that I won't ever change my mind about technology use in my history class, but until I hear a really good reason for the change, I'm sticking to my plan. A few hours of technology-free dialogue is just too sweet to give up.

    You probably know who Marie Curie was, but you may not have heard of Rachel Carson. Of the outstanding ladies listed below, who do you think was the most important woman of the past 100 years?

    Jane Addams (1860-1935)

    Anyone who has ever been helped by a social worker has Jane Addams to thank. Addams helped the poor and worked for peace. She encouraged a sense of community by creating shelters and promoting education and services for people in need. In 1931, Addams became the first American woman to win the Nobel Peace Prize.

    Sandra Day O'Connor (1930-present)

    When Sandra Day O'Connor finished third in her class at Stanford Law School, in 1952, she could not find work at a law firm because she was a woman. She became an Arizona state senator(参议 员) and ,in 1981, the first woman to join the U. S. Supreme Court (最高法院). O'Connor gave the deciding vote in many important cases during her 24 years on the top court.

    Rosa Parks (1913-2005)

    On December 1,1955, in Montgomery, Alabama, Rosa Parks would not give up her seat on a bus to a white passenger. Her simple act landed Parks in prison. But it also set off the Montgomery bus boycott (联合抵制). It lasted for more than a year, and kicked off the civil-rights movement. "The only tired I was, was tired of giving in," said Parks.

    We were on tour a few summers ago, driving through Chicago， when right outside of the city, we got pulled over(被迫停车). A middle-aged policeman came up to the car and was really being troublesome at first. He said,“ You were speeding. Where are you going in such a hurry?” Our guitarist, Tim, told him that we were on our way to Wisconsin to play a show. Then his way towards us totally changed. He asked, “Oh, so you boys are in a band(乐队)?” We told him that we were. He then asked all the usual band questions about the type of music we played and how long we had been at it.

    Suddenly, he stopped and said, “Tim, you want to get out of this ticket, don't you?” Tim said, “Yes.” So the officer asked him to step out of the car. The rest of us, inside the car, didn't know what to think as we watched the policeman talk to Tim. Then the policeman put Tim in the back of the police car and threw the car into reverse(倒车), stopping a few feet in back of our car.

    Now we suddenly felt frightened. We didn't know if we were all going to prison. Suddenly, the policeman's voice came over in a loudspeaker. He said, “Ladies and gentlemen, for the first time ever, we have Tim here singing on Route 90.” Later we knew, the policeman had told Tim that if he sang one of our songs over the loudspeaker in the police car, we would get out of the ticket. Seconds later, Tim started screaming into the receiver. The policeman enjoyed the performance, and sent us on our way without a ticket.

    Panama City, Panama

    For beach vacations that get you out of town and invite you and your family to dive into culture, consider a trip to Panama City. Here, you will enjoy beaches and city exploring. Book your stay at the Westin Playa Bonita, where you can book a room starting at $222 a night. There are various programs, including beach Olympics, stargazing (天体观察）and Spanish lessons.

    Jupiter, Florida

    This place offers you quality time you can spend with your loved ones. Book your stay at Jupiter Beach Resort & Spa, with rates for a family of four starting at $207 a night. Here, you can shoot baskets at the basketball courts, take a dip in the pool or teach your children beach yoga.

    San Diego, California

    The West Coast is a great spot for cheap beach vacations, so tell your family to pack their bags for a visit to San Diego. A cheap $10 Uber ride from the airport will have you pulling up the Kona Kai Resort & Spa. Here, a family of four can stay in a Deluxe Guest Room starting at $159 per night. Your kids can practice cannonballs at the pool after a visit to the world-famous San Diego Zoo.

    Kihei Maui, Hawaii

    For West Coasters who are growing bored with their backyard, fly to the islands of Hawaii. Stay at the Aston at the Maui Banyan, with a charge of $179 a night for a family of four. Here, you'll witness some of the best sunsets of your life while your kids splash (戏水）in the Pacific, And if you're set on cooking a fancy meal, you'll enjoy suites that come with a full kitchen.

    The Frick Collection (5th Avenue and E. 70th Street)

    Many art lovers would rather visit this small art gallery than any other in New York. Henry Clay Frick, a rich New Yorker, died in 1919, leaving his house, furniture and art collections to American people. Frick had a preference for pre­twentieth century Western paintings, and these are well­represented in this excellent collection. You can also explore Frick's beautiful house and garden which are well worth a visit

    Guggenheim Museum (5th Avenue and 88th Street)

    This museum owns 5,000 excellent modern paintings, sculptures and drawings. These art works are not all displayed at the same time. The exhibition is always changing. It will appeal to those who love Impressionist and Post­Impressionist paintings. The Guggenheim Museum building is also world­famous. The best way to see the paintings is to start from the top floor and walk down to the bottom. There are no stairs, just a circular(环形的) path.

    Metropolitan Museum of Art (5th Avenue and 82nd Street)

    The reputation of this museum lies in the variety of its art collection. This covers more than 5,000 years of civilization from many parts of the world. The museum displays more than just the visual delights of art. It introduces you in ancient ways of living. You can visit an Egyptian temple, a fragrant Ming garden, a typical room in an 18th century French house and many other special exhibitions.

    Whitney Museum of American Art (945 Madsion Avenue, near 75th Street)

    The Whitney holds an excellent collection or contemporary American paintings and sculptures. There are no permanent displays in this museum and exhibitions change all the time. Every two years, the Whitney holds a special exhibition of new art by living artists. The museum also shows videos and films by contemporary video artists.