Richard Louy，an American writer，wrote about what he called nature-deficit disorder（大自然缺失癥）in his book.He called for saving ourselves from nature-deficit disorder.（1）

A

A

Now more and more people have known that being outdoors and close to nature is a good idea.It has many benefits（益處）.
   Getting back to nature has been found helpful in reducing stress.（2）

D

D

And later they were also given the same tests before and after walking in the city.The results showed that the volunteers' blood pressure was lower after walking in the woods compared with walking in the city.
  （3）

B

B

In the other study，mountain climbers scored better on a creativity test after spending four days in nature without any electronic devices like smartphones.The study's researcher David Strayer said，" It showed that staying in nature has real benefits to creative problem-solving."
    Getting back to nature can help your body heal itself.A study showed that patients who spent more time in natural light healed（康復(fù)） faster and had less pain than those who didn't.（4）

C

C

   Spending time outdoors also provides people with chances of forming better relationships（5）

E

E

.It makes them feel closer to each other.

A.He's not the only one to come up with this idea. B.Being close to nature helps improve your creativity. C.It seemed nature served as a natural medicine for them. D.In a study，volunteers were given stress tests before and after walking in the woods. E.People should spend time outdoors talking face to face and enjoying the beauty of nature together.