Have you ever had the pleasure of popping the small air-filled bubbles that make up a sheet of bubble wrap (气泡膜包装)? If so, you know there’s something highly satisfying about it. Have you ever wondered why people like bubble wrap so much?

It turns out that there is some science behind the human connection to bubble wrap. Some experts believe it’s similar to the need to fidget (坐立不安). Do you click a pen or bounce your leg while you’re listening? Maybe you like to draw aimlessly in the corners of your notes or squeeze a stress ball. These small actions are all types of fidgeting.

While some people think fidgeting is distracting, it’s actually been shown to increase attention span. It also helps with the memory of information. Similarly, a study revealed that people report feeling more alert after popping bubble wrap.

The results also showed that people who popped bubble wrap were calmer afterward than those who did not. So, like fidgeting, popping bubble wrap may increase people’s ability to pay attention and remember what they learn.

Experts also say the enjoyment of bubble wrap may be tied to human evolution. In other words, your brain is wired to enjoy it! Early humans had to be on their toes all the time. They needed to be ready to run from a predator (捕食者) at a moment’s notice.

Today, people spend a lot of time sitting, especially at school and at work. As a result, the body may build a lot of muscle tension from lack of movement.

Popping bubble wrap helps relax that muscle tension. It reduces stress and anxiety. In fact, studies have shown that, sometimes, the human brain receives feel-good chemicals like dopamine after popping bubble wrap. So that may be why it feels so satisfying!

【小题1】According to Paragraph 2, while feeling nervous or bored people probably _________.

A．Sit still

B．Keep silent

C．Bounce the leg

D．Chat with others

【小题2】What does the underlined phrase “on their toes” in paragraph 5 mean?

A．mindful

B．concentrated

C．considerate

D．aggressive

【小题3】Which of the following is not the benefit of popping bubble wrap?

A．It reduces pressure and anxiety.	B．It makes people calm and alert.
C．It increases concentration ability.	D．It strengthens people’s muscles.

【小题4】Where does the passage probably come from?

A．A medical report.

B．A science magazine.

C．A chemistry paper.

D．A fashion magazine.