Scientists found connection between heart disease and reproduction | Added: 19, August 2017
Heart diseases are associated with the reproduction of our ancestors.
Changes that increase attractiveness for the opposite sex cause heart problems in old age.
Scientists now understand why heart and blood vessel problems are the main reason for death nowadays. This information is reported in the article by Australian geneticists in the journal PLoS One.
Researchers have found connection between coronary heart disease and the success of procreation.
The authors recall that the development of most multicellular living beings is controlled by two factors: natural and sexual selection.
In the first case, the organism evolves under the influence of the environment, while in the second, evolution depends on intraspecific competition for the possibility of continuing its genus.
Struggling this, the "brightest" individuals win, which leads to the appearance of such useless ornaments as the tails of peacocks or rooster’s scallops that do not help but prevent survival.
The reasons for the existence of sexual selection are still a matter of debate among scientists: some biologists believe that it helps populations be ready for drastic condition changes, while others say that such competition protects species from degeneration and supports their competitiveness in the evolutionary "arms race".
Scientists from the University of Melbourne studied DNA variations in Europe, Africa, and Asia and discovered an unusual relationship between these "halves" of evolution, which made a person genetically and evolutionarily predisposed to developing problems with the heart and blood vessels in old age.
"Mutations contributing to the development of such health problems in old age did not disappear from the gene pool, but even spread and accumulated in it." In other words, the bearers of negative changes in the structure of genes that lead to the development of coronary disease left more offspring and could continue genus", - reports RIA Science.
Scientists believe that some changes that increase the attractiveness for the opposite sex lead to heart problems in old age.
This was supported by the idea that many of these genes were most active in the genitals or glands, and also determined the time of onset of puberty, the time of the onset of menstruation, menopause and the probability of survival after childbirth.
All this means that coronary heart disease and other cardiovascular problems are widespread today not because of the development of civilization and the deterioration of the environment, but for deep evolutionary reasons related to how our ancestors survived and multiplied ages ago.
It should be noted that high sugar consumption increases the risk of cardiovascular diseases.