Ella Fitzgerald got it all right in her song Let’s Do It:

In old Japan, all the Japs do it.

Because, according to the Japan Family Planning Association, the hard working citizens of Japan have stopped having fun in the bedroom.

There are plenty of old people still around (hence the old Japan reference) but it seems that the youngsters of the country have just stopped.

Japan does, in fact, have a declining population, and this could be why:

Of the survey’s respondents, 49 percent said they had not had sex in the past month, up 5 five percent over numbers from 2013. Most blamed fatigue, a loss of spark, or the sense that sex was just too much of a hassle. But 18 percent of men (20 percent among those aged 25 to 29) just said they have no interest in or actively dislike trips to pound town, suggesting a deeper social change beyond a collective dry spell.

No interest in sex? Too much of a hassle? FML. Take some time out. Go on a holiday, buddy.

If the math is right, “by 2020 old-age incontinence underpants will outsell diapers, by 2040 over-80s will outnumber under-15s, and by 2060 the nation’s population will shrink from its current 128 million to 87 million.

Check out Vice for the full article and more studies that have been done.