theory of stress

例句：

1. 1. The theory of stress has been widely studied in the field of psychology.
   压力理论在心理学领域得到了广泛研究。
2. 2.The stress theory suggests that stress can have both positive and negative effects on an individual's health.
   压力理论认为，压力对个体的健康既有积极影响也有负面影响。
3. 3.The stress theory has been used to explain various phenomena in nature and society.
   压力理论被用来解释自然界和社会的各种现象。