Research indicates that positive reinforcement motivates and has a greater effect on learning than criticism.

研究表明 积极的强化比批评更能激励学习 对学习有更大的影响。

Decades of animal studies and an increasing number of human trials show that a diet that is high in refined foods has a detrimental effect on learning and memory.

数十年的动物研究和越来越多的人体试验表明，精制食品含量高的饮食对学习和记忆有不利影响。