AI is a double-edged sword. It can help us, but also cause us harm. Who is using AI? Is AI replacing humans? What should we do to avoid the risks and dangers that AI might bring?

Artificial intelligence is set to benefit mankind in many ways. It will make everyday tasks easier and bring efficiency to various industries. It might just prove to be one of man’s greatest inventions.

And yet, like any other technology, ▲ . In February 2018, a group of AI experts got together to discuss the possible misuse of AI. What they found was that “Every AI advance by the good guys is an advance for the bad guys, too,” according to Quartz.

Their biggest concern was that criminals (罪犯) could use AI for wrongful purposes. One of the areas they looked at was the use of AI to create websites that could be used to steal people’s personal information. Another possibility is that AI programs could be taught to hack software and break into computer secure systems.

There are some other concerns as well. It is possible that AI could be used to create fake images and videos. Chinese tech giant Baidu, in fact, has developed a program called Deep Voice that can “clone” anyone’s voice by studying a 3.7-second audio sample.

Many leading figures in the tech world have expressed concern about AI. People like Bill Gates and Elon Musk have called for the industry to be more strictly regulated, as there are few laws right now on the use of AI.

However, this is set to change. In March 2018, the European Union plans to set up a group that will discuss the moral and ethical dangers of advanced AI – and hopefully, suggest some regulations that will help us keep it safe for mankind.

We can see lots of different kinds of food with different colors on our dining tables. Doctors and our parents always ask us to eat lots of green vegetables, because they are healthy for us. It’s also good for us to have food in other colors. For example (例如), we can have red food like tomatoes and carrots, yellow food like bananas, brown food like chocolate and orange food like oranges. Most people like to eat red food.

But what about blue food?

A food company (公司) has a test. The workers put (放) the color blue in its candies (糖果). Children like the color blue very much, so would they like the blue candies? The test finds that children don’t like them at all. They still like red, green, brown, yellow and orange candies.

How many kinds of blue fruits or vegetables do you know? You can see a little blue food in your life. People may think blue is not a food color and that it’s not safe (安全的) or healthy to eat the food that is blue. People find many blue plants are poisonous, and animals are afraid to eat them. This is why people don’t often use blue when they make drinks, cakes and other food.

People with type AB blood may have a higher risk of heart illness compared with those whose blood type is O, according to a new study.

Scientists reviewed two studies that tracked (追踪) nearly 90,000 people for more than 20 years and found that heart illness risk varied (呈现差异)with blood type. People with type O blood had the lowest incidence (几率) of heart illness, and compared with them, those with type AB blood were 23% more likely, and people with A were 5% more likely.

“While people cannot change their blood type, our findings may help doctors better understand who is at risk for developing heart illness,” said study author (作者) Dr. Lu Qi, working at the Harvard School of Public Health in Boston.

The scientists considered two Harvard studies, one that tracked 62,000 women over 26 years, and one that tracked 27,400 men over 24 years. In all, more than 2,500 people were found with heart illness.

However, further research is needed. In order to reduce heart disease risk, people should exercise, eat right and keep their weight.

In the United States, 45% of people have type O blood, making it the most common blood type. Only 4% of the U.S. population has type AB blood, while about 40% has type A and about 11% has type B.