french kiss

Before, people thought gonorrhea could only be transmitted through genital contact but research showed that gonorrhea because French kissing is also feasible.

Australian experts found that an old sexual disease like the earth, still thought to be sexually transmitted, could easily jump over a kiss!

In English, there are many things that start with words

Research by Dutch scientists shows that a 10-second kiss can exchange 80 million bacteria.

Keio University researchers are inspired by teenagers, who are crazy about idols, and always want posters hanging at home to turn into real idols.