一、饮食习惯和药物利用。在人们生活周期的每一个阶段中,食物消费的形式对每个人来说是有变化的。人生的早期,婴儿与儿童的食物摄取基本上由他们的父母所决定的。他们不仅让儿童们常吃,并且不企图使他们吃某一种食物而排除食用其它种类的食物。当成年时期,饭食习惯会发生显著的改变。青年们,他们常常超越了家庭的影响和偏爱,而对所食的食物确立了一种自己的支配能力,以力求形成个人的独立性。通常在这种年龄时,他们典型的饮食是快餐和小吃。 First, eating habits and drug use. In each phase of the life cycle, the form of food consumption changes for everyone. Early in life, baby and child food intake is largely determined by their parents. They not only make children eat, and do not try to make them eat a certain kind of food and exclude other types of food. When in adulthood, there is a noticeable change in eating habits. Young people, who often go beyond the influence and preference of the family, have established their own dominance over the food they eat in an effort to establish their individual independence. Usually at this age, their typical diet is fast food and snacks.