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秒鐘熱吻會升高血壓、加速脈搏，還會增加血液中的荷爾蒙，由此會導(dǎo)致生命縮短一分鐘。
　　
　　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。

　　接吻會產(chǎn)生一種物質(zhì)，其麻醉的效果比嗎啡強200倍。這也就是為什么在接吻的時候，人們會有種輕飄飄的幸福感。