The biological clock is ticking and men

French scientists claim found evidence that men also have a biological clock, and their presence will be manifested after 30 years. Scientists have the study, which was attended by 12 thousand couples who participated in the treatment of infertility. It was found that the opportunity to present in men aged 35 years will be reduced. At the age of 40 years for men the ability to conceive a child is even smaller, scientists say. Researchers refer to the European Conference of reproductive health, have suggested that the problem might be, such as DNA damage in the sperm of men serve more than 35 years. The study involved a couple who were treated at the Centre for Reproductive Medicine in Paris from 2002 to 2006. All couples performed in vitro fertilization, also known as artificial insemination. This process in those couples in which women have no problems, conducted with the ability to become pregnant, the researchers reported. Scientists have been studying the man's sperm and the ability and speed of the sperm, as well as their size and shape. There have been cases of successful pregnancies and miscarriages. Experts analyzed data from participants in the pregnancy so that they. Accurately determine the influence of factors related to men and women in relation to pregnancy As a result, researchers have found that maternal age had a negative effect for 35 years, resulting in difficulties to get pregnant and a high risk of miscarriage. In addition, the researchers found a similar trend in men older than 30 years. Couples who are older than 35 years for women and 30 for men, according to statistics, only 10% of pregnant after treatment, experts say.