[Article déjà publié le 29 juillet 2024]

Under the wooded hills of Kentucky extends a unique underground network: Mammoth Cave, the longest known cave in the world. This limestone labyrinth, several hundred million years old, retains in its depths the traces of a forgotten sea past. At a time when the region was overwhelmed by a hot and shallow sea, shark species … Read more

Since the first forms of vegetable life, photosynthesis has been one of the pillars of biological balance on earth. This complex mechanism is based on a series of reactions orchestrated with extreme precision, the first step of which takes place within Photosystem II. Long considered perfectly symmetrical in its structure, this energy conversion center has … Read more

Present in our desserts, our drinks and our cupboards, the stevia seemed confined to its role as a natural sweetener. However, a new method of fermentation applied to this current plant reveals an unexpected potential in the face of one of the most feared cancers. By targeting the tumor cells of the pancreas with unprecedented … Read more

September 4, 476, Rome and his empire fell. This is the classic date retained by historians to put an end to this period of history that has marked Europe. A little less than 1600 years later, we can make parallels between what Europe experiences, and therefore France, and what the Roman Empire experienced before and … Read more

Long confined to the prevention of infectious diseases, vaccination today reveals an unsuspected potential in the field of neuroscience. Two vaccines commonly used in the elderly seem to significantly reduce the risk of cognitive disorders, without direct link with the infection they aim to prevent. This observation, resulting from large-scale clinical data, replaces preventive processing … Read more

In recent years, science has dissected what birth suggests from our biological future. Far from being frozen, the genetic imprint is accompanied by more subtle, inherited or altered signals from the first days of development. Among them, the length of the telomeres intrigues by its ability to reflect both the cellular history of the parents … Read more

In Sweden, almost one in six children is born today by Cesarean, a large part of which is scheduled without medical emergency. If this practice is often perceived as safe and comfortable, recent research suggests that it is not devoid of long -term consequences for the health of the child. A vast study by Karolinska … Read more

[Article déjà publié le 29 mai 2024]

In many families, the succession of girls or boys intrigues as much as it defies the laws of probabilities. However, which looks like a statistical anomaly, however, begins to deliver its secrets. By looking closely with biological mechanisms, maternal age and even certain genetic signatures, researchers discover that the same sex births obey more subtle … Read more