Kisses stimulate the production of saliva, which washes away bad bacteria
An orthodontist recommends that people kiss for four minutes a day to keep their teeth healthy and their breath pleasant, MailOnline said.
According to Dr. Khaled Kasem, kissing stimulates the production of saliva, which washes away bad bacteria. However, they do not replace traditional brushing.
“Saliva is important because it makes it easier to chew, taste, swallow, fight bacteria in the mouth … This happens when kissing,” explains Dr. Kasem of the Impress dental chain.
Saliva also neutralizes acids and thus reduces the risk of tooth decay.
Single people can replace their partner with gum. However, kissing has an advantage – the exchange of saliva stimulates the immune system to produce more antibodies that protect against infection.
People with herpes and other infectious diseases should still refrain from kissing.