Leo in the Country Weekly article on the work of David Barker, a British epidemiologist who found a significant relationship between low birth weight one hand, and hypertension, cardiovascular disease and some forms of diabetes in adulthood, on the other side. I had read about this finding in Matt Ridley's book "What makes us human," and although at that I spend time in an entry time passed without being put to it so now I find a great opportunity to pay my debt.
Barker prenatally to a sort of primer on the baby who is prepared to adapt to the world we will live. Thus, if a woman is stressed and has insufficient food during pregnancy, the fetus plays through the mother to wait a context of life stress and food shortages and reprograms your metabolism to adapt to this difficult world. For example, the baby develops a resistance to insulin which facilitates the accumulation of fat in times of need. What was not foreseen is that in childhood would not have such a lack of calories but on the contrary, a world with excess sweets and pastries, so that baby born with low birth weight show a clear tendency to gain weight throughout his life, and hence the increased risk of developing cardiovascular disease. The child was born with the wrong program.
These data reveal how genetic programs are not fully closed, and are likely to be influenced by the contexts of development during the fetal period and also during the first years of life. This flexibility makes sense to ensure a better adaptation to a world that is constantly changing. Another example of how this can be reversed early reprogramming is found in relation to the type of attachment established between the infant and a caregiver in early childhood. As we have told elsewhere (see here ), although newborns are genetically programmed to bond with their caregivers, develop a type of bond or another type of care received from them. Thus, the link may be safe, unsafe or insecure avoidant ambivalent.
Although normally secure attachment can have a clear evolutionary advantage, in less favorable situations of insecure attachments can be displayed above. This would apply to children born in difficult and very limited resources in which parents may pay little attention to their offspring. In these contexts of developing self-reliance displayed by the avoidant children would ensure their survival, so this type of attachment would have an important adaptive value. However, as was the case with infants studied by Barker, in most cases these high-stress family situations and conflicts would not be a reflection of a world of shortages, but a specific situation because it would not be continued along of life of these children. Therefore, we could also say that these babies had been programmed to live in the wrong conditions, and its "tools" socio-emotional not be best suited to interact with peers, to mate and raise their children in a less-than-expected deficit.
Barker prenatally to a sort of primer on the baby who is prepared to adapt to the world we will live. Thus, if a woman is stressed and has insufficient food during pregnancy, the fetus plays through the mother to wait a context of life stress and food shortages and reprograms your metabolism to adapt to this difficult world. For example, the baby develops a resistance to insulin which facilitates the accumulation of fat in times of need. What was not foreseen is that in childhood would not have such a lack of calories but on the contrary, a world with excess sweets and pastries, so that baby born with low birth weight show a clear tendency to gain weight throughout his life, and hence the increased risk of developing cardiovascular disease. The child was born with the wrong program.
These data reveal how genetic programs are not fully closed, and are likely to be influenced by the contexts of development during the fetal period and also during the first years of life. This flexibility makes sense to ensure a better adaptation to a world that is constantly changing. Another example of how this can be reversed early reprogramming is found in relation to the type of attachment established between the infant and a caregiver in early childhood. As we have told elsewhere (see here ), although newborns are genetically programmed to bond with their caregivers, develop a type of bond or another type of care received from them. Thus, the link may be safe, unsafe or insecure avoidant ambivalent.
Although normally secure attachment can have a clear evolutionary advantage, in less favorable situations of insecure attachments can be displayed above. This would apply to children born in difficult and very limited resources in which parents may pay little attention to their offspring. In these contexts of developing self-reliance displayed by the avoidant children would ensure their survival, so this type of attachment would have an important adaptive value. However, as was the case with infants studied by Barker, in most cases these high-stress family situations and conflicts would not be a reflection of a world of shortages, but a specific situation because it would not be continued along of life of these children. Therefore, we could also say that these babies had been programmed to live in the wrong conditions, and its "tools" socio-emotional not be best suited to interact with peers, to mate and raise their children in a less-than-expected deficit.
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