每天一个生活口语话题，一段地道的举例回答，并附有详细的词汇，发音及用法讲解。讲解材料选自当今最先进最有效的英语原版教材，更加贴近生活。每天坚持听讲解，并根据问题练习，给自己一个地道输入和输出的机会，你也可以张口自信说英语。

主题：Why is laughter the best medicine?

The idea that laughter has healing power has been around for thousands of years and is shared by many cultures. Research has shown health benefits of laughter ranging from strengthening the immune system to reducing food cravings to increasing one's threshold for pain. There's even an emerging therapeutic field known as humor therapy to help people heal more quickly, among other things.

Craving: 渴望
Threshold：极限
Emerging：新兴的
Therapeutic：治疗的