1 . Mice were given a memory test in a lab at the University of New South Wales, in Australia. Scientist Margaret Morris set them in their usual box, but she rearranged the objects in the box. Some mice smelled them curiously, but others just moved on. They didn’t remember the objects were once in a different place.
The mice with sharper memory were fed with a regular diet of low-fat, healthy food. However, the mice that ate lots of junk food for two weeks – such as cake, meat pies, chips, and cookies – were forgetful.
Food can have the same effect on people, too. “If you’re eating junk food regularly, and not eating enough fruit and vegetables,” Morris said, “the changes inside your body may be affecting brain function” Changes inside the body can affect a person’s overall health, too.
Scientists have long known that the brain communicates with the stomach to control digestion. Recently, they have found that the stomach talks back. It may even tell the brain what to do.
Foods with too much salt and sugar affect the microbiome (肠道菌群) in your body by killing the right bacteria (细菌) in it. These bacteria protect you from illness and keep your mind sharp. Lacking them can lead to being overweight and depression.
Rob Knight is a scientist at the University of California, San Diego. He suggests eating yogurt, because it is packed with healthy bacteria. Does that mean no French fries? “Having them sometimes is okay,” Knight says. “It’s the long-term habits that really matter. Being good to your microbiome over the next six months is a lot more important than what you ate yesterday, or what you eat tomorrow.”
1. In the memory test, some mice moved on because ______.| A．they are forgetful | B．they eat a lot of food |
| C．they are not curious | D．they eat low-fat food |
| A．the stomach may speak to brain | B．the stomach may affect brain function |
| C．the stomach can keep one’s mind sharp | D．the stomach can protect one from illness |
| A．microbiome | B．bacteria |
| C．too much salt and sugar | D．yogurt |
| A．People must not eat French fries to protect their mircobiomes. |
| B．Eating yogurt for six month is good for body health. |
| C．It’s necessary to maintain long-term healthy eating habits. |
| D．What you eat tomorrow is the most important thing. |
