Now more people have to work indoors with computers. This means much sitting and little exercise. We have known that if we don't move much, we will get fatter, we will have heart problems and maybe we will get diabetes(糖尿病). But new studies have shown that it could hurt our mental (精神的) health too.
A study of 937 Brazilian adults found that about one-third of them sat for more than 10 hours per day. It reported that people who sat for too long often showed more symptoms(症状) of depression (抑郁) .
Another study was centered on children. It found that each extra hour of sitting time at the age of 12, 14 and 16 led to higher depression points at age 18.
But according to Mats Hallgren from Sweden,"Sitting for too long can slow the blood flow(流动) in the body, including the blood flow to the head."It might be bad for the growth of neurons(神经细胞) in the head. Besides, couch potatoes might do other unhealthy things while sitting, such as eating junk food. All of these may lead to depression.
The good news? It's easy to control. Aaron Kandola from University College London, said even light exercise might help."It is great to exercise and play sports."said Kandola. But anything you can do to avoid sitting for too long will help with moods(心情), stress and thinking clearly. The key is just to move more often.
①We may feel more active. ②We may become fatter. ③Our mental health may be hurt. ④Our blood will flow more slowly. ⑤Our neurons in the brain will grow.
B . 
C . 
D . 
