12. Smooching passionately for 90 seconds will elevate blood pressure and cause the pulse rate to go racing. It will also increase the level of hormones in the blood, thus reducing life by one minute。

　　90秒钟热吻会升高血压、加速脉搏，还会增加血液中的荷尔蒙，由此会导致生命缩短一分钟。
　　
　　13. The bodies of those engaged in kissing produce a substance that is 200 times more powerful than morphine in terms of narcotic effect. That is why the kissing partners can experience feelings of euphoria and bliss in the process。

　　接吻会产生一种物质，其麻醉的效果比吗啡强200倍。这也就是为什么在接吻的时候，人们会有种轻飘飘的幸福感。