【推荐1】People may set an alarm on the phone or clock that sounds like this: beep beep beep(嘟嘟声). That hard, unpleasant sound may be making it harder to shake off the sleepy feeling in the morning known as grogginess (东倒西歪). So, is there a better way to wake up? A recent study says yes. The answer is music.

The study, carried out by researchers in Australia, involved 50 people. The researchers found that people who wake up to musical alarms reported feeling more awake and alert. Stuart McFarlane, a lead writer of the study stated, “We are very surprised by these findings as one might expect a harsh(难听的)beeping sound to be more successful at waking up a person.”

Sleep inertia(惯性)is another term for grogginess. It means a person has a heavy feeling when waking up, and has trouble getting moving again after sleeping. McFarlane said people need to better understand sleep inertia’s harmful effects on human performance later in the day.

Not everyone will experience the full effect. But for those who do, “care should be taken” when performing duties that require a top performance within this period, he said. This includes “dangerous tasks like driving or riding our bikes” shortly after waking up. The same is true for people who work in dangerous situations shortly after they wake, including firefighters and pilots.

So, what makes musical alarms better for waking up? The researchers think the music may be more successful in reducing sleep inertia because it has several tones, compared to the single tone of a “beeping” alarm. McFarlane said that the changes over time between the music tones may help increase a person’s attention when waking from sleep.

And is there a kind of music that is best to wake up to? There may be, McFarlane said. “We could suggest alarm sounds that are tuneful (和谐的) and easy to hum or sing along with. The current sounds I have been using include ‘Close to me’ by the Cure and ‘Borderline’ by Madonna.” No matter how you wake up, experts say, the amount of sleep you get also matters — a lot.

【推荐2】The Best Way to Nap

A study published in the journal Heart found a link between healthy napping (打盹) and a lowered risk of heart disease. The American Psychological Association points out that naps can improve memory,learning capacity and mood. Sara Med nick,PhD,a neuroscience at the University of California explains that when you fall asleep, your body moves through stages that each play a role in health. Ideal napping times are based around this four-stage cycle.

Not a regular napper? That’s OK. “Everyone needs to rest, but not everyone necessarily needs to nap,” says Med nick.

【推荐3】When you need to see a doctor, surely you will want to see a good one. But there is one important thing you may never have thought about: Has your doctor rested enough?

Doctors in our country often have to work 34 hours or longer without sleep. Most of them work 104 hours a week, and some even 150. (There are only 168 hours a week!) One report said that a doctor who works such long hours cannot think more clearly than a drunk driver. Another found that doctors who sleep 5.8 fewer hours than the week before might make 22% more serious mistakes. Surely no one wants to get in a car that is driven by a drunk driver. So, how safe would you feel when you are under the care of a tired doctor?

Sadly this problem has been around for a long time. There are no laws about it yet and hospital bosses don’t look like they care either. And that is why we doctors are asking you to join us on the street this Sunday. Fight together with us on the street so we can fight better for your life in the hospital.

Time: 1 p. m. July 15                    Place: City Hospital Square

【推荐1】The hotel roof top bar will never go out of style. Whether it’s on the 6th floor or the 65th, there’s something undeniably appealing about dining, drinking, swimming and yoga-ing high above the streets of the city below. Here are some of the best (relative) newcomers.

Qr Melbourne

The locally loved rooftop at QT is something of a chameleon (变色龙). By day, it’s the site of pop-up yoga sessions that allow guests to take in the skyline from within their downward does. At mealtime, it’s a place to dine on vegetables from chef Andrew Harmer’s rooftop garden. And after dark, it becomes a happening bar serving high-concept cocktails.

The Silo, Cape Town

The design of this new hotel ensures that every room has a dizzying view, but the roof top is especially enjoyable. The rooftop, which feels like it’s floating above Cape Town, has fantastic views of Table Mountain, Lions Head and the ocean. There’s a guests-only infinity pool (无边际游泳池) and a restaurant and a restroom with 360-degree views over the city.

Aria Hotel Budapest

The pride of this hotel is its High Note Sky Bar, with a year-round rooftop garden that offers wraparound (全景的) views over the city of Budapest. The bar managers chefs and bake chefs work together to ensure maximum enjoyment.

The Winery Hotel, Sweden

It’s the sixth floor of this hotel in Solna, where the rooftop life comes alive. Along with a restaurant that serves wine, cocktails and spaghetti, the hotel hosts DJ sessions that create the sensation of being in a much larger city.

【推荐2】Who says inventions are only made by grown-ups and professionals? Over the years, children have also succeeded in making their useful contributions to the world. Here are a few inventions that came to life from the minds of young children.

Seven-year-old Samuel Meyer's invention is aimed at stopping people from riding their bikes or skateboards without using a helmet. The Hero Helmet features an inbuilt remote that controls a lock on the wheels which unlocks when the Helmet is being worn by the rider. Samuel says: no helmet, no bike.

The first thought that comes to mind is, why a robotic earthworm? Well, ten-year-old David Cohen had some useful applications in mind. He believed it could be used to find victims after a flood, earthquake or fire. The robot could get into small and dangerous places where search dogs and humans could not go.

Fifteen-year-old Hannah Herbst's invention, which stands for Bringing Electricity Access to Countries through Ocean Energy, was inspired by her pen pal who lives in Ethiopia and did not have access to lights. So she came up with B. E. A. C. O. N, which absorbs energy directly from ocean waves. Her invention won the “Discovery Education 3M Young Scientist Challenge” in 2015 and other numerous awards.

At only eight years old, Amelia Fox created the invention to help lift people in and out of their wheelchair. This invention was not just born out of the desire to create something. Amelia developed this controller for her brother, who had just got hip surgery and needed the wheelchair to move around.

【推荐3】Anyone who commutes（通勤）by car knows that traffic jams are an unavoidable part of life. But humans are not alone in facing potential backups.

Ants also commute-between their nest and sources of food. The survival of their colonies depends on doing this efficiently.

When humans commute, there's a point at which cars become dense（稠密）enough to slow down the flow of traffic, causing jam. Researchers wanted to know if ants on the move could also get stuck. So they regulated traffic density by constructing bridges of various widths between a colony of Argentine ants and a source of food. Then they waited and watched, trying to find out at what point they are going to have a traffic jam.

The researchers then took a closer look at how the behaviour of individual ants impacted traffic as a whole. And they found that when ants sense overcrowding, they adjust their speeds and avoid entering high-density areas, which prevents jams. These behaviors may be promoted by pheromones, chemicals that tell other ants where a trail is. The ants also manage to avoid colliding（碰撞）with each other at high densities, which could really slow them down.

Can ants help us solve our own traffic problems? Not likely. That's because when it comes to getting from point A to point B as fast as possible, human drivers put their own goals first. Individual ants have to be more cooperative in order to feed the colony. But the research could be useful in improving traffic flow for self-driving cars, which can be designed to be less like selfish humans—and more like ants.