9 unusual facts about sex in different parts of the world:
1. Native Hawaiians give nicknames to their genitals
Traditionally, Hawaiians worshipped and gave affectionate names to their genitals.
According to Milton Diamond, an expert on the sexual behaviour of pre-colonization Hawaiian tribes, Queen Liliuokalani's genital chant spoke of "Mischievous," her "playful, up-and-down" genitalia.
2. The Japanese are having less sex
Japan is one of the countries with a sharp drop in the birth rate in recent years.
Condom and contraceptive pill use, abortion, and the incidence of sexually transmitted diseases are also on the decline.
"The only explanation for this is that Japanese people are having less sex," says Kunio Kitamura, the director of Japan's family planning association.
A recent report showed that a record number of couples live in sexless relationships. A third of men say they are too tired for sex and a quarter of women say sex is bothersome.
Another survey, done with people aged 18 to 34, showed that the proportion of virgins has increased greatly in the last decade: almost 45% of them say they have never had a sexual relationship.
3. South Korean women don't want to have children
On average, a South Korean woman would have 1.05 children during her lifetime, but the country needs a birth rate of 2.1 births per woman — double the current one — to keep its population stable.
To try to solve the crisis, the government has invested billions in campaigns in recent decades. Even so, the number of births continues to fall.
Sharply rising housing prices and the cost of raising children may be behind the crisis, but a more likely cause is the sky-high number of working hours in the country.
Since society expects women to be primarily responsible for children, having a child means sacrificing one's career – or working double permanently. And women are saying no.
4. Russia has a Conception Day
A region of Russia has devised an ingenious way to get the dwindling population to procreate again.
The governor of Ulyanovsk, east of Moscow, has declared that September 12 is Conception Day: a holiday in which couples are encouraged to stay at home only to produce children.
Couples who manage to have a baby nine months after that day win prizes such as refrigerators, washing machines and video cameras.
5. In Brazil, Mehináku men court women with fish
In the villages of the Mehináku indigenous people living in the south of the Xingu Indigenous Park, women have a simple way to decide between their suitors.
Men who are competing for a woman's heart should bring her a fresh fish as a gift.
Invariably, the man who caught the biggest fish is successful.
6. Austrian women offer armpit-flavoured apples to their admirers
In Austria, women traditionally attend a ball where they must dance with apples in their armpits.
After choosing the men in whom they have an interest, they offer them a piece of the sweaty fruit.
If the man also likes it, he is willing to take a bite of the apple. And it's not worth spitting later.
7. In the Wayuu tribe in Colombia, women conquer men with a creep
In this community, not knowing how to dance right helps win over a suitor.
The Guajiro men and women, from the Colombian Wayuu tribe, participate in a special ceremonial dance, in which the women have to make the men stumble.
If they succeed, sex is guaranteed.
8. Danes make children during the holidays
According to a survey by travel company Spies Travel, Danes have 46% more sex during the holidays.
And not only that. About 10 per cent of Denmark's babies were conceived outside the home while their parents were travelling.
As a prize, in 2014 the company offered the equivalent of three years of baby accessories and a trip to do with children to all customers who could prove that they had their children on vacation.
9. Greeks are the ones who have the most sex
According to a global survey conducted by condom maker Durex — done with nearly 30,16 people over the age of 26 in <> countries — Greece is "the place to be."
It is, at least, the country where people have the most sex: on average, each person has 164 sexual encounters per year.
Perhaps their cultural heritage will continue to play a role in today's society. The ancient Greeks were known to be tolerant, open, and experimental with their sexuality.
