Most people agree that eating healthy food is important. But sometimes making good food choices can be tough. Now, there are apps that can help people learn about the food they eat to improve their diets.

Open Table

    Open Table helps people choose restaurants when they want to go out to eat. Open Table is a free service that shows users restaurant availability based on where and when they want to dine. Open Table users can also make reservations directly through the app or website.

Epicurious

    Epicurious is a free app and website to help users find recipes and become better cooks. The app has more than 30,000 recipes and can create a shopping list based on the ingredients in a recipe. The app rates recipes for popularity and other qualities and inform users about vegetables in season in different areas.

Happy Cow

    The Happy Cow app is made freely for Vegetarians. Users can search for vegetarian restaurants and stores around the world. The Happy Cow app is based on the Happy Cow website, where users can discover places nearby or search using keywords.

Local Eats

    Restaurant chains, like McDonalds, can be found almost anywhere a person might travel. But sometimes tourists want to eat like locals. The website and app Local Eats is designed for that, which can help you find local restaurants in major cities in the US and in other countries. It lists locally owned restaurants so users can try foods from that area.

Where Chefs Eat

    “Where Chefs Eat” is a 975-page book. Most people would not want to carry that around. But there is a much lighter app version of the same name for just one dollar. Six hundred chefs provide information on 3,000 restaurants around the world on the Where Chefs Eat app. Users can also search by region, chef, or restaurant name.

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    Young people frequently say that they want to exercise, but they just can't find the time.

    The solution just might be in-office interval training.

    Recent studies show that very short but intense exercise rapidly builds and maintains fitness and health, even when the workout is only a few minutes long.

    Work the stairs

    You can complete an excellent, effective — and very brief — workout in an office stairwell, says Martin Gibala, a professor of kinesiology at McMaster University in Canada and an expert on interval training.

    For a study that he and his colleagues presented earlier this year, they asked 12 out-of-shape women in their 20s to warm up for two minutes by slowly walking up and down stairs in a campus office building.

    They completed three of these abbreviated stair workouts per week for six weeks.

    By the end, their aerobic fitness had improved substantially, the researchers reported, by about as much as if they had been running or cycling each week for hours.

    Fidget your way to fitness.

    Parents and teachers may once have urged you to sit still, but wiggling, tapping your toes, standing briefly, and otherwise fidgeting as much as possible at your desk is in fact good for your body.

    In one recent study, college students showed healthier blood flow in their lower legs if they fidgeted than if they did not.

    Even better, a 2008 study found that among office workers, those who frequently fidgeted burned as many as 300 calories more each day than those who resolutely stayed still.

    Both humans and animals have enemies. It is easy for us to know the difference between our friends and our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat(威胁) and those who do not. In Kenya, researchers find that elephants react differently to clothing worn by men of the Maasai and Kamba ethnic groups. Young Maasai men spear(刺)animals and thus pose a threat to elephants; Kamba men are mainly farmers and are not a danger to elephants.

    In an experiment conducted by animal scientists, elephants were first presented with clean clothing or clothing that had been worn for five days by either a Maasai or a Kamba man. When the elephants noticed the smell of clothing worn by a Maasai man, they moved away from the smell faster and took longer to relax than when they noticed the smells of either clothing worn by Kamba men or clothing that had not been worn at all.

    Clothing color also plays a role. In the same study, when the elephants saw red clothing not worn before, they reacted angrily, as red is typically worn by Maasai men. Rather than running away as they did with the smell, the elephants acted aggressively(攻击地) toward the red clothing.

    The researchers believe that the elephants' emotional(情绪的) reactions are due to their different senses of the smells and the sights. Smelling a potential danger means that a threat is nearby and the best thing to do is run away and hide. Seeing a potential threat without its smell means that risk is low. Therefore, instead of showing fear and running away, the elephants express their anger and become aggressive.

    The 65-year-old Steve Goodwin was found suffering from early Alzheimer's (阿尔楚海默症). He was losing his memory.

    A software engineer by profession, Steve was a keen lover of the piano, and the only musician in his family. Music was his true passion, though he had never performed outside the family.

    Melissa, his daughter, felt it more than worthwhile to save his music, to which she fell asleep catch night when she was young. She thought about hiring a professional pianist to work with her father.

    Naomi, Melissa's best friend and a talented pianist, got to know about this and showed willingness to help.

    "Why do this?" Steve wondered.

    "Because she cares." Melissa said.

    Steve nodded, tears in eye.

    Naomi drove to the Goodwin home. She told Steve she'd love to hear him play. Steve moved to the piano and sat at the bench, hands trembling as he gently placed his fingers on the keys.

    Naomi put a small recorder near the piano, Starts and stops and mistakes. Long pauses, heart sinking. But Steve pressed on, playing for the first time in his life for a stranger.

    "It was beautiful." Naomi said after listening to the recording. "The music was worth saving."

    Her responsibility, her privilege, would be to rescue it. The music was sill in Steve Goodwin. It was bidden in rooms with doors about to be locked.

    Naomi and Steve met every other week and spent hours together. He'd move his fingers clumsily on the piano, and then she'd take his place. He struggled to explain what he heard in his head. He stood by the piano, eyes closed, listening for the first time to his own work being played by someone else.

    Steve and Naomi spoke in musical code lines, beats, intervals, moving from the root to end a song in a new key. Steve heard it. All of it. He just couldn't play it.

    Working with Naomi did wonders for Steve. It had excited within him the belief he could write one last song. One day, Naomi received an email. Attached was a recording, a recording of loss and love, of the fight. Steve called it "Melancholy Flower".

    Naomi heard multiple stops and starts, Steve struggling, searching while his wife Joni called him "honey" and encouraged him. The task was so hard, and Steve, angry and upset, said he was quitting. Joni praised him, telling her husband this could be his signature piece.

    Naomi managed to figure out 16 of Steve's favorite, and most personal songs. With Naomi's help, the Goodwin family found a sound engineer to record Naomi playing Steve's songs. Joni thought that would be the end. But it wasn't.

    In the months leading up to the 2016 Oregon Repertory Singers Christmas concert, Naomi told the director she had a special one in mind: "Melancholy Flower"

    She told the director about her project with Steve. The director agreed to add it to the playing list. But Naomi would have to ask Steve's permission. He considered it an honor.

    After the concert, Naomi told the family that Steve's music was beautiful and professional. It needed to be shared in public.

    The family rented a former church in downtown Portland and scheduled a concert. By the day of the show, more than 300 people had said they would attend.

    By then, Steve was having a hard time remembering the names of some of his friends. He knew the path his life was now taking. He told his family he was at peace.

    Steve arrived and sat in the front row, surrounded by his family. The house lights faded. Naomi took the stage. Her fingers. His heart.

Preparing Cities for Robot Cars

    The possibility of self-driving robot cars has often seemed like a futurist's dream, years away from materializing in the real world. Well, the future is apparently now. The California Department of Motor Vehicles began giving permits in April for companies to test truly self-driving cars on public roads. The state also cleared the way for companies to sell or rent out self-driving cars, and for companies to operate driverless taxi services. California, it should be noted, isn't leading the way here. Companies have been testing their vehicles in cities across the country. It's hard to predict when driverless cars will be everywhere on our roads. But however long it takes, the technology has the potential to change our transportation systems and our cities, for better or for worse, depending on how the transformation is regulated.

    While much of the debate so far has been focused on the safety of driverless cars (and rightfully so), policymakers also should be talking about how self-driving vehicles can help reduce traffic jams, cut emissions (排放) and offer more convenient, affordable mobility options. The arrival of driverless vehicles is a chance to make sure that those vehicles are environmentally friendly and more shared.

    Do we want to copy—or even worsen—the traffic of today with driverless cars? Imagine a future where most adults own individual self-driving vehicles. They tolerate long, slow journeys to and from work on packed highways because they can work, entertain themselves or sleep on the ride, which encourages urban spread. They take their driverless car to an appointment and set the empty vehicle to circle the building to avoid paying for parking. Instead of walking a few blocks to pick up a child or the dry cleaning, they send the self-driving minibus. The convenience even leads fewer people to take public transport—an unwelcome side effect researchers have already found in ride-hailing (叫车) services.

    A study from the University of California at Davis suggested that replacing petrol-powered private cars worldwide with electric, self-driving and shared systems could reduce carbon emissions from transportation 80% and cut the cost of transportation infrastructure (基础设施) and operations 40% by 2050. Fewer emissions and cheaper travel sound pretty appealing. The first commercially available driverless cars will almost certainly be fielded by ride-hailing services, considering the cost of self-driving technology as well as liability and maintenance issues (责任与维护问题). But driverless car ownership could increase as the prices drop and more people become comfortable with the technology.

    Policymakers should start thinking now about how to make sure the appearance of driverless vehicles doesn't extend the worst aspects of the car-controlled transportation system we have today. The coming technological advancement presents a chance for cities and states to develop transportation systems designed to move more people, and more affordably. The car of the future is coming. We just have to plan for it.

Online activity can be riddled with cyberbullying (网络霸凌). To find out which app is the best to keep your kids safe online, we tested four apps over five weeks. ● Mobicip Premium

$8 per month (billed annually at $96) for 20 managed devices at Mobicip

Mobicip Premium's social media and screen time monitoring were all strong. We found its app blocking, website content monitoring, and location tracking capabilities to be powerful as well. ● Net Nanny

$90 per year (billed annually) for 20 managed devices at Net Nanny

The user interface (界面) of this app is family-friendly and visually engaging, featuring cartoons of parents and casual language. The web filtering, screen time allocation (分配), and app management functions are all capable. ● OurPact Premium+

$100 per year (billed annually) for 20 managed devices at OurPact

This app requires that we pair our child's device to our computer with a cable and download the OurPact Jr. app. The Screen Time capability is personalized to fit our child's schedule. ● Qustodio Premium Small

$55 per year (billed annually) for 20 managed devices at Qustodio

The thoughtfully designed web interface makes Qustodio Premium Basic easy to operate. Its web filtering and game blocking features were powerful. This app is available for Android, Chromebook, iOS, Kindle, macOS and Windows, though not all features are supported across all platforms.