Philadelphia offers a ton of attractions that are suitable for people of every age and here are some family—friendly attractions．

    Spruce Street Harbor Park

    Spruce Street Harbor Park，one of the best urban beaches in American，is an outdoor heaven on the Delaware River waterfront．Visitors can relax in a hammock，play on the playgrounds，and play games like table tennis and giant chess．Don't miss out on the park at night，when colorful LED lights hanging from treetops make the entire area bright.

    Blue Cross RiverRink

    Offering ice skating in the winter and roller skating in the summer，Blue Cross RiverRink creates a fun，outdoor experience for the whole family．Visitors can play on the nine-hole mini-golf course during the summer，and enjoy eats and drinks from the on-site(现场的)bar and restaurant all year round．

    Sesame Place

    Big Bird，Elmo and the other stars of Sesame Street come out and play at Sesame Place，the only theme park in the nation starring the popular TV show's most lovable characters．A water park，interactive activities，parades，fireworks and shows add to the fun．

    Once Upon a Nation Storytelling Benches

    On summer days，uniformed and professional storytellers at 13 storytelling benches throughout Philadelphia's Historic District entertain visitors with true，free，three-to-five minute tales about the colonial(殖民的)era as part of Once Upon a Nation．Children can pick up a Story Flag at any storytelling bench，and then collect a star from every storyteller on their journeys．Flags with all the stars can get free rides on the Parx Liberty Carousel at Franklin Square．

    Being sociable looks like a good way to add years to your life. Relationships with family, friends, neighbours, even pets, will all do the trick, but the biggest longevity(长寿) boost seems to come from marriage or an equivalent relationship. The effect was first noted in 1858 by William Farr, who wrote that widows and widowers(鳏夫) were at a much higher risk of dying than their married peers. Studies since then suggest that marriage could add as much as seven years to a man's life and two to a woman's. The effect holds for all causes of death, whether illness, accident or self-harm.

    Even if the odds are stacked against you (the conditions are not favourable), marriage can more than compensate. Linda Waite of the University of Chicago has found that a married older man with heart disease can expect to live nearly four years longer than an unmarried man with a healthy heart. Likewise, a married man who smokes more than a pack a day is likely to live as long as a divorced man who doesn't smoke. There's a flip side, however, as partners are more likely to become ill or die in the couple of years following their spouse's death, and caring for a spouse with mental disorder can leave you with some of the same severe problems. Even so, the odds favour marriage. In a 30-year study of more than 10,000 people, Nicholas Christakis of Harvard Medical School describes how all kinds of social networks have similar effects.

    So how does it work? The effects are complex, affected by socio-economic factors, health-service provision, emotional support and other more physiological mechanisms(机制). For example, social contact can boost development of the brain and immune system, leading to better health and less chance of depression later in life. People in supportive relationships may handle stress better. Then there are the psychological benefits of a supportive partner.

    A life partner, children and good friends are all recommended if you aim to live to 100.The best social network is still being mapped out, but Christakis says: “People are interconnected, so their health is interconnected.”

    Supermarket shoppers who buy lots of foods on "two for one" deals are far more likely to be obese (肥胖的), a major study suggests.

    Cancer Research UK found that those with highest consumption of discounted foods were at 50 percent greater risk of obesity, compared with those with low take-up of such deals.

    The study of more than 16,000 households found almost one in three food and drink items in UK supermarket baskets were bought on promotion. And the discounts were far more likely to be applied to unhealthy foods, with almost half of all chocolate, crisps, popcorn, and savoury snacks bought on promotion.

    Shoppers whose baskets contained between 40 and 80 percent of goods on special offer were 54 percent more likely to be obese than those with a maximum 20 percent of foods on such deals. Those with highest take-up of the deals bought 30 percent less fruit, and nearly 25 percent fewer vegetables than those shunning the deals.

    The study follows a government consultation on proposals to ban "buy one, get one free" deals on unhealthy foods and supermarket "guilt lanes" as part of its childhood obesity strategy.

    One in five children are overweight or obese when they start primary school, rising to around one in three when they leave.

    Research has found that obesity increases the risk of 13 different types of cancer including bowel and breast disease.

    Alison Cox, director of cancer prevention at Cancer Research UK, said: "The government's proposed 9 p. m. ban on junk food ads is a step forward in fighting childhood obesity. Now we want to see restrictions on price promotions for unhealthy food and drink items, as well as those strategically placed at checkouts. This will help families to make healthier choices.

    "There isn't one magic fix for the problem, but getting rid of these encouragements to buy unhealthy food is key to changing it."

    The "Give It Up for Earth Day" encourages people to commit to giving up actions that are harmful to the environment, such as using poisonous cleaners.

    Throughout the month of April, Canadians are being asked to "Give It Up for Earth Day!" Earth Day has been celebrated every year on April 22 since 1970. Earth Day Canada president Jed Goldberg says that as people become more environmentally aware, they want to find ways to reduce their environmental influence, not just celebrate one special event.

    "Earth Day is a great launching pad for thinking about environmental action every day," said Goldberg. "Choosing healthier options, even for the short term, can lead to thinking about the influence of our decisions for a lifetime."

    That's the reason behind the "Give It Up for Earth Day" campaign. It's designed to encourage healthy habits that benefit people and the planet. It challenges everyone to help create a healthier world by making changes in their daily routine.

    "We wanted to plan an action—targeted campaign that will give people a chance to act on their concern for the environment in a positive way," said Goldberg.

    The campaign has identified four daily actions that can add up to huge environmental savings. They include pledging (保证) to turn off the TV, give up the use of poisonous cleaners, reduce consumption of consumer products and cut out meat.

    At the end of April, all of the pledges will be recorded and converted (转化) into the number of TV hours not watched, dollars not spent on unnecessary items, electricity saved, greenhouse gas emissions (排放) avoided by cutting out meat, and poisonous chemicals produced from homes and landfills.

    "What we're trying to achieve this year for Earth Day is to give people a chance to do something that is meaningful and measurable," said Goldberg.

    UK-based swimming pool manufacturer (制造商) Compass Pools has announced plans for the world's first 360-degree infinity (无限) pool. Titled Infinity London, the pool would contain 600,000 liters of water, and would sit at the top of a 55-story hotel.

    According to Compass Pools' plan, the pool would feature transparent (透明的) walls and floor, offering views across London's skyline and down into the hotel below. These walls would be made of cast acrylic, a material chosen to make sure that the material is completely clear.

    The main problem with designing the pool was how to make sure entry or exit from the pool without affecting the view. Speaking about this design, Compass Pools' technical director and designer Alex Kemsley explained，"Normally a simple ladder would suffice, but we didn't want stairs on the outside of the building or in the pool as it would spoil the view – and obviously you don't want 600,000 litres of water running down through the building either. The solution is based on the door of a submarine, coupled with a rotating spiral (螺旋的) staircase which rises from the pool floor when someone wants to get in or out."

    Take a look at early models of how the pool might look in the gallery above. At present, no contract has been made but building work could begin as early as 2020.

If a president, a philosopher, and one of the best-selling writers credited the same secret for their success, would you try to follow it too? What if the secret was something you already knew how to do? In fact, you probably do it every day. Here's what Friedrich Nietzsche wrote: "It is only ideas gained from walking that have any worth. " Thomas Jefferson: "Walking is the best possible exercise. " Charles Dickens: "If I could not walk far and fast, I think I should just explode and die. "

Researchers have found quite a lot of connections between walking and producing ideas. A Stanford University study found that participants were 81 percent more creative when walking as opposed to sitting. According to the study, walking outside-compared with on a treadmill (跑步机)-produces the most novel and highest-quality ideas.

The movement aspect of walking is obviously key. Our creative thinking is triggered (触发)by physical movement, which is exactly why walking-with your dog, a friend, or alone-feeds creative thinking.

The scenery is almost as important as the sweat. Breaking your routine with a walk can be a catalyst for fresh understanding of problems or projects. Just by going outside, you are stepping out of your familiar surroundings and your comfort zone, which is necessary if you want to open your mind to new possibilities. You can walk through a tree-filled neighborhood. You can walk through a park and observe people joking or birds singing. Being inside, you're more likely to be lifeless, which means you don't have enough energy to wonder or create.

So instead of setting a fitness goal, why not set a creativity goal that starts with walking? Involve yourself more closely in your surroundings. Tum off your phone and give yourself the chance to be present in the world, to hear conversations and natural sounds, and to notice the way people move and the way the sun reflects in puddle (小水坑).