Here are a few examples of the heterosexual age of consent in different countries: Essentially it means that if you have sex with someone when you or they are under the age of consent, then you are breaking the law – even if you both have sex willingly.In the eyes of the law people are unable to give informed consent to sex when they are still considered a child.

Young sex chart-59

There was one about how close to one another people who ended up together used to live (the answer is very close).

Another about how the average age at which people get married has evolved (it has, as you probably know, been creeping upwards for some time).

If you are involved in an abusive relationship it is important to talk to someone.

If you’re finding it hard to talk to someone you know, try to find a telephone helpline or contact a healthcare professional to get the support you need.

And there was this, an eye-catching display of dating data, and arguably the most interesting of the lot: The chart, which comes from a longitudinal study by sociologist Michael Rosenfeld, says a lot about how romance has evolved over the past 60 some odd years.

It shows the rise of online dating (which has only been more pronounced for same-sex couples), clearly depicted by the darker of the two blue lines above (notice not only its furious ascent, but also its relative importance—more than 20 percent of straight couples reported meeting their partners online in 2009, the most recent year for which data are available).

It underscores the outsized role of friends, who historically have been and still are the likeliest avenue to eventual significant others.

But Rosenfeld's data also says a lot about how much life has changed over the same period.

The most common age of sexual consent is 16.1 The legal age for sex in your country may be different depending on whether you are a boy or a girl.

It could also vary if you are gay or lesbian - in many countries gay and lesbian sex is illegal.

This may seem unfair, but try to remember that the law is there to protect you.