In most countries boys are born more often girls. The ratio is approximately 51 to 49. In some cases it changes in the direction of the girls. Scientists from northwestern University have analyzed data on 700 000 women from the USA, writes The Daily Mail.
It turns out that systematic skipping Breakfast reduces the chances of having a boy. The index fell from 49% to 45%. Scientists believe that matter is in the level of glucose, boys need more nutrients in the early stages of development.
The sex of the baby is laid at her very conception. Responsible for him not only the sex chromosomes, but also protein-enzyme Jmjd1a. He reveals the DNA molecule and gives rise to the male sex. Experiments prove that when you turn off a protein in animals are born only female cubs.