The world celebrates International Kiss Day

It has been proven that touching the lips actually provokes quite complex chemical reactions. A long passionate kiss increases the heart rate by more than 100 beats per minute. It raises the level of hormones in a person's blood so much that it can prolong his life by one minute.

Today is World Kiss Day. The date was proposed by Britain and officially recognized by the United Nations in 1988. The holiday quickly gained popularity and began to be celebrated around the world, including new records for mass and longest kissing.