4. 动物能缓解压力

　　Petting pets has been shown to reduce blood pressure and heart rates in adults. Even being in the same room with pets, including fish in tanks, can lower blood pressure and reduce stress in adults and children. Indeed, many dentists and other doctors keep aquariums in their waiting rooms. This not only helps relieve anxiety, but reduces the need for pain medication as well.

　　养宠物的成年人血压和心率都比较低。和宠物待在同一间屋子里，就算是鱼缸里的鱼都行，能够降低成年人和儿童的血压和压力。的确，很多牙医和其他医生都会在他们的候诊室里放鱼缸。这不仅能够降低焦虑，还能减少病人对止痛药的需求。