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There are 3,500 women who participated in a recent study in South Korea and Greece. A study that ultimately showed that women who gave birth five or more times would have a 70% chance of developing Alzheimer's disease in old age, reports CNN.
Under the leadership of Dr. Ki Woong Kim, neuropsychiatrist at the Seoul National University, this research only covered women over 60, and the average age of women studied in these two countries was 71.
Alzheimer's disease is a neurological disorder where death of brain cells results in memory loss and cognitive decline. This is the most common type of dementia. This disease is irreversible once it starts on a patient and according to the researchers, "it is caused by a build-up in the brain of beta-amyloid plaques and neurofibrillary tangles called tau," reports Afrika Mag. [19659002] Moreover, the World Alzheimer Report 2016 evokes more than 47 million people in the world living with dementia and, according to the Alzheimer's Association, women in their 60s are twice as likely to develop Alzheimer's disease. 19659002] A disturbing finding about women
The author of the study, Dr. Kim, explains that "pregnancy is a hormonal roller coaster. During the first trimester, the level of estrogen increases modestly and then skyrockets for the rest of the pregnancy. In the third trimester, the estrogen level can be up to 40 times higher than the maximum level during natural menstrual cycles. Within four days of delivery, the estrogen level for most women drops rapidly to medium levels. At the same time, the levels of progesterone and a stress hormone called cortisol increase rapidly during pregnancy, but drop after the baby is born. "
In the same vein, the authors argue that they discovered what they did not expect to begin this experiment. Indeed, "based on previous research, we expected pregnancy with delivery to be associated with the risk of Alzheimer's disease." Except that the results have shown that "incomplete pregnancy [est] associated with a lower risk of Alzheimer's disease," according to the researchers.
The study reveals that women who had undergone an incomplete pregnancy were significantly less likely to develop Alzheimer's disease than women who had never been pregnant. That said, this first study is not definitive and further research could be conducted "because it is possible that several factors contribute to pregnancy, and science requires a better understanding of these factors."
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