Tongue Kissing is probably very popular, but seems unhealthy. During a single French kiss, more than 40,000 parasites exchanged. According to a Swedish study. Swedish researchers who were investigating oral hygiene, have a critical look at the biological effects of snogging and thereby come to a “shocking” conclusion.

During a single snogging ride or be around 40,000 parasites and 250 different bacterial species exchanged. Besides changing is 0.7 grams protein, 0.45 grams of fat and 0.19 grams of other organic substances owner.

The research was conducted partly in response to an announcement on Valentine record to the record for longest snogging improve. The current record is 30 hours 59 minutes and 21 seconds and dates from 2001.

Yet there is still a positive side to give a snogging: you burn calories a lot with it. For example, winners of the record set, if the record to match or improve any ride or 7436 calories burned.