YOU SAID:

We’re getting stupider – and our ageing population may be to blame. Since around 1975, average IQ scores seem to have been falling. Some have attributed this to the evolutionary effect of smarter women tending to have fewer children.

INTO JAPANESE

我々はますます愚かになっている。高齢化が原因かもしれない。1975年頃から、平均IQスコアは低下しているようだ。これは、賢い女性は子供を産む数が少ないという進化的影響によるものだと考える人もいる。

BACK INTO ENGLISH

We're getting stupider. Maybe it's because we're getting older. And since about 1975, the average IQ score seems to have been declining. Some people think this is due to evolutionary influences, where smarter women have fewer children.

INTO JAPANESE

人間はどんどん愚かになっています。おそらく、年を取っているからでしょう。そして 1975 年頃から、平均 IQ スコアは低下しているようです。これは進化の影響によるもので、賢い女性はより少ない子供を産むからだと考える人もいます。

BACK INTO ENGLISH

Humans are getting stupider, probably because we're getting older, and since about 1975, average IQ scores seem to have been declining. Some people think this is due to evolutionary forces, because smarter women have fewer children.

INTO JAPANESE

人間は年を取っているせいか、どんどん愚かになってきており、1975年頃から平均IQスコアは低下しているようだ。賢い女性はより少ない子供を産むので、これは進化の力によるものだと考える人もいる。

BACK INTO ENGLISH

Humans are getting stupider as they age, and average IQ scores appear to have been declining since about 1975. Some believe this is due to evolutionary forces, since smarter women have fewer children.

INTO JAPANESE

人間は年を取るにつれて愚かになってきており、平均IQスコアは1975年頃から低下し続けているようだ。賢い女性はより少ない子供を産むため、これは進化の力によるものだと考える人もいる。

BACK INTO ENGLISH

Humans are getting stupider as they get older, and average IQ scores appear to have been declining since about 1975. Some believe this is due to evolutionary forces, as smarter women have fewer children.

INTO JAPANESE

人間は年を取るにつれて愚かになってきており、平均IQスコアは1975年頃から低下し続けているようだ。賢い女性ほど子供の数が少ないため、これは進化の力によるものだと考える人もいる。

BACK INTO ENGLISH

Humans are getting stupider as they get older, and average IQ scores appear to have been declining since about 1975. Some believe this is due to evolutionary forces, as smarter women have fewer children.