Photo:Getty ImagesMany women are offended that they are already included in the ranks of old mothers at the age of not yet 30. They say that the weaker sex needs to hurry up with conception and childbirth to avoid negative consequences for their own health and the well-being of the baby. But a man at 40-50 can still continue his family line very well. He has nowhere to hurry, he can live for his own pleasure or climb the career ladder and build a platform for the future unit of society. We hasten to disappoint you, dear bachelors. American scientists have significantly shortened your reproductive age. In the American Journal of Stem Cells, bright minds from overseas published an article in which they advised men to have children before 40. Experts noted that the later conception occurs, the higher the risk of developing dangerous diseases, including autism and Down syndrome. Scientists see the reason for such a negative impact of a man's age on the health of the future child in sperm. After 40 years, the likelihood of their damage increases, and their activity simply decreases significantly. That is why experts strongly recommend that men have children before this age. In addition, American scientists have also drawn attention to the fact that the future father's passion for alcohol can also affect the health of the future baby and cause problems with coordination, hyperactivity and attention. Even if the future mother does not swallow a drop of alcohol. Experts cite data according to which about 75% of children diagnosed with "fetal alcohol syndrome" were conceived by men with alcohol addiction.