An epidemic among our children that can give us pause for thought | Yurukov's blog

At the beginning of the 20th century, the percentage of left-handed people, i.e. people with a dominant left hand, did not exceed 4% according to surveys in schools. After the 20th year, it increased many times and by the 70s it reached the levels we see today – about 10-12% with a predominance of men. In different countries, this increase is visible in the statistics later, and in others – as early as the 50s. You can assume that this is due to…