阅读下面材料，在空白处填入适当的内容（一个词）或括号内单词的正确形式。
Why is pink or purple a color for girls and blue or brown for boys?
The answer depends largely _________ cultural values as well as personal experiences. To the Egyptians, green was a color _______ represented the hope and joy of spring, while for Muslims, it means heaven. Red is a symbol of good luck in many cultures. During the Spring Festival in China, children ______(give) money in a red envelope to bring good fortune in the New Year. For many nations, blue is symbol of protection and religious beliefs. Greek people often wear a blue necklace hoping to protect _____ against evils（灾祸）.
People’s _______(choose) of colors is also influenced by their bodies’ reactions toward them. Green is said to be _____ most restful color. It has the ability to reduce pain and relax people both mentally _____ physically. People ______ (work) in green environment have been found to have fewer stomach aches.
Red can cause a person’s blood pressure to rise and increase people’s appetites（食欲）. Many decorators will include different shades of red in the restaurant. And many commercial websites will have a red “Buy Now” button because red is a color that _____ (easy) catches a person’s eye.
Blue is another calming color. Unlike red, blue is believed to cause people to lose appetite. So ____ you want to eat less, some suggest that eating from blue plates can help.