The birth of a child is a great event for families, which is reflected not only in the life of the spouses, but also their behavior. Scientists have found that after the birth of the child the majority of men become less aggressive, more soft and tender, a lot of time child and wife.
Alexander Makarov, doctor of biological Sciences, researcher of the Paleontological Institute of the Russian Academy of Sciences believes that such changes can be explained by a sharp spike in blood men female sex hormones, disposing the body in a completely different way. As a result of softness in the behavior and the desire to spend a lot of time with the child in the family circle.
Note that while the scientific theory was not confirmed. Require special studies to measure the level of female and male sex hormones in the blood of the men who survived the birth of a child.