4 . A 71-year-old Swedish man “can’t put into words” how thankful he is for the new technology that quickly flew him into the small category of only ten percent of people who survive sudden heart stopping.

The man now has made a full recovery and returned home, after the speedy delivery of a defibrillator(除颤器)—via autonomous drone(无人驾驶飞机). The company behind the drone pilot project says it’s the first time in medical history, a drone has played an important part in saving a life during a heart stopping.

He was in his driveway when the attack happened. Normally, you have about ten minutes to get help in such a situation. Luckily, a telephone call was immediately placed requesting emergency services and he lived in a region that had partnered with Everdrone’s innovative life-saving programme called EMADE (Emergency Medical Aerial Delivery service). EMADE drones delivered a defibrillator to the scene—and the amount of time from the alarm(警报) until the defibrillator was safely delivered at the doorstep of the incident address was just over three minutes.

Even luckier, a doctor happened to be driving by and stopped to see if he could help. “I was on my way to work at the local hospital when I saw a man collapsed in his driveway and I immediately rushed to help,” says Dr. Mustafa Ali. After the ambulance arrived, the patient was rushed to the hospital.

The man said, “If it wasn’t for the drone I probably wouldn’t be here.”

275,000 patients in Europe and 350,000 in the US, suffer from heart stopping annually. About 70% of heart stopping occur in private homes without defibrillators on site. The chance of survival decreases by 7%—10% with each minute following the collapse(突然倒下)—and as a result, the current survival rate among heart stopping patients is merely 10%.

5 . At any moment, you or someone around you could experience an injury or an illness. In this case, you need to provide basic medical care for yourself or the person. This is known as first aid. Using basic first aid, you may be able to stop a small accident from getting worse.     1    

In some cases, first aid consists of the initial (最初的) support provided for someone in the middle of a medical emergency.     2       In other cases, first aid consists of the care provided for someone with a small injury. For example, first aid is often what is needed to treat burns, cuts and insect stings (蜇伤). And if you come across an emergency situation, follow these three basic steps:

Check the scene for danger. Look for anything that might be dangerous, like signs of fire or falling pieces. If your safety is at risk, remove yourself from the area and call for help.    3       Don’t move them unless you must do so to protect them from danger.

    4     If you suspect the sick or injured person needs emergency medical care, tell a nearby person to call 911 or the local number for emergency medical services. If you’re alone, make the call yourself.

Provide care. If you can do so safely, remain with the sick or injured person until professional help arrives.     5       If you have basic first-aid skills, try to treat any life-threatening injuries they have. Remove yourself from danger if at any point in the situation you think your safety might be at risk.

6 . The organic (有机的) food market is made up of the sale of organic foods, drinks and related services. These food products do not use a lot of food additives or industrial solvent (溶剂).

Increasing health concerns about the growing number of chemical poisoning cases globally is acting as a driver in the organic food market. People are paying more attention to health because of the harmful effects caused by the presence of chemical pesticides (杀虫剂) in food products.

The chemical pesticides in food products can cause cancer. According to a UN report, around 200,000 people die every year due to bad effects of pesticides in food products. This is causing people to change their focus towards organic food products.

Are organic foods safer? We cannot say yes immediately. Some data show possible health benefits of organic foods. Some studies have shown differences between the organic foods and the traditional ones. But there is little information to prove how these differences can give overall health benefits.

Compared with the traditional foods and drinks, short shelf life of organic foods is controlling the organic food market. For example, a study conducted by a research team shows that the shelf life of organic food products is shorter than traditional products. Similarly, some researchers find that many organic foods have higher levels of bacteria than traditional products, which cause food to go bad. As organic foods don’t have the similar amount of preservative (防腐剂) to that of traditional foods, organic foods are easier to gain bacteria attacks and have a shorter shelf life, which in turn makes it difficult for people to keep them. Thus, people will experience a high risk of buying the bad organic foods.

The organic food market is controlled by authorities such as the US Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA) to ensure high-quality standards of food products. Also, the authorities have come up with strict food labeling rules for the organic food market.