For a long time, the health of the future baby was considered almost exclusively through the maternal prism. Food, tobacco, alcohol, medical monitoring… The responsibility seemed to fall mainly on the shoulders of women and their choices. But a new international study shakes up this vision. It reveals that the father’s health and lifestyle also play a determining role, from conception (and even before), in the smooth progress of the pregnancy and the development of the child.
A study that changes perspective
Published in The Lancetthis research carried out by the University of Southampton and several international partners highlights a reality that is still too little explored: the direct impact of fathers’ health on pregnancy and offspring.
Researchers analyzed data from biological, behavioral and social sciences to better understand the role of men in the so-called “preconception” period. Their conclusions are clear:
Weight, alcohol or substance use, age, but also mental health, environment or education level can influence not only fertility, but also fetal development and the future health of the child.
In some cases, the father’s influence could even be more marked than that of the mother, notably due to experiences during childhood, such as stress or socio-economic conditions. For the team, the men constitute “a large population” but “systematically underestimated” regarding measures to improve the health of the next generation.
Much more than a simple fertility variable
Beyond the biological aspects, the study also highlights a major societal issue: placing all responsibility for a child’s future health on the mother reinforces gender stereotypes. Researchers are therefore calling for a more collective approach to parenting and prevention.
For gynecologist Odile Bagot, these results confirm a recent but fundamental development in medicine:
“For a long time, male lifestyle was considered solely from the angle of fertility. We knew that exposure to toxic substances or endocrine disruptors could alter the quality of sperm”.
But now research shows the impact goes far beyond:
“The father’s lifestyle plays a major role as much as his genetic background. It also influences the “product of conception”, that is to say the unborn child and his health.”
This awareness is still recent, particularly concerning the effects of alcohol, which have only been documented for a few years.
What this actually changes for future dads
These discoveries redefine the role of men in the child project. Being a father no longer begins only at birth or during pregnancy: it begins well before conception.
This involves in particular:
- To reduce or stop the consumption of alcohol and tobacco;
- To adopt a balanced diet;
- To take care of your mental health;
- To limit exposure to occupational or environmental toxicants;
- And to be actively involved in the couple’s medical monitoring.
The objective is not to make men feel guilty, but to empower and fully integrate men into the reproductive health process.
Towards a new vision of design
This study invites us to rethink design as a truly shared project. According to Dr Bagot, pre-conception consultations should evolve and become more open to future fathers:
“Until now, we did not systematically ask the question of the father’s lifestyle, except in cases of fertility problems. This should be formalized.”
In other words, questioning the future father’s alcohol consumption, smoking or exposure to toxic substances should become a medical reflex, in the same way as the mother’s health check.
This development could also help reduce health inequalities and improve the well-being of future generations. Investing in the health of boys and young men thus appears to be a real public health issue. This new advance could also change the collective narrative: pregnancy is no longer just a women’s affair, but a biological, medical and social adventure “for two”.
By understanding that their lifestyle choices can influence the health of their future child, fathers become fully involved in conception. A silent revolution… but essential for the future of families.