Fill in each numbered blank in the passage with ONE suitable word to complete its meaning :
Exercise is good for our body, but do you know that exercise is also good for our mind? A recent research has shown that…( 1 )…exercise makes our mind feel better. Doing exercise… …( 2 )… our mood and give us the confidence to encounter whatever difficulty that we meet in our life. Some studies show…( 3 )…it also enhances the functioning of your brain. When we are physically active our body releases…( 4 )…known as “endorphins”. These chemicals are our body’s…( 5 )… painkillers and stress reducers. They diminish anger, anxiety, and depression and produce a sense of well being. Meanwhile, other studies have shown that even short time of moderate…( 6 )…can improve our outlook on life and make us less anxious. Whether we…(7 )…a ten-minute walk, do a few jumping jacks, or bicycle around the block, we will feel the benefit both …( 8 )…and emotionally.