阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Have you ever noticed that you feel 【小题1】 (happy) and more relaxed after you eat bread，pasta or fruit? Do you find that you are more energetic and awake after eating yogurt or beans? These things are not accidents. Food 【小题2】   (affect) how we feel more than we think. Scientists researching 【小题3】 (it) effect on our moods are beginning to understand that we can influence our feelings with what we eat.

Although our moods relate 【小题4】 having various food，it is not quite as simple as choosing the food for the right occasions. If that 【小题5】(be) the case，athletes would not eat a lot of carbohydrates before a race.

Another chemical 【小题6】(connect) with our moods is caffeine, 【小题7】is found in coffee, chocolate and many types of tea，and it is perhaps 【小题8】 worst thing you can have when you are feeling stressed.

Of course，enjoying a nice meal with friends，whatever we eat，can also impact our spirits. 【小题9】(be) with friends and family plays a big part in experiencing happiness.

Most importantly，though，remember the following old rule：try to eat different food，【小题10】 not too much.