In fact, body fat is not only key because it is related to mass, but also because it is linked to another component that is equally characteristic of obesity: blood pressure. Blood pressure (and the pulse in particular) shows itself to be considerably influenced by the environmental factor, and less determined by genetic factors (0.14-0.31).
There are no common genetic and environmental factors that prove a proportional relation between blood pressure and obesity. What can be observed, however, is that the quantity of body fat has genetic effects on blood pressure phenotypes, corroborating the relationship between the two.
Biodemographic and socioeconomic factors
Ms Jelenkovic also characterised the link between corporal morphology and the family, the thesis considering it be a significant factor, but not especially influential. The researcher observed that, for example, siblings share more environmental factors that influence their corporal morphology than parents and children. As regards mothers, the thesis concludes that the children of young mothers tend to have more body mass and fat, and that the age of the mother when she has her first child and parental education are more closely linked to obesity-related phenotypes than other family factors.
Neither is the socioeconomic factor particularly significant, but it does throw up some interesting data. For example, greater economic status also means being taller and having less adipose tissue. Moreover, socioeconomic status has more influence on phenotypes related to adipose tissue than to body mas
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