London-Sana
A new study confirms the validity of the theory of the constant rate of aging, ending the debate about the myth of eternal youth and the effectiveness of drugs and innovations used to extend the life of youth.
The study, published by the Guardian newspaper and conducted by the University of Oxford with the participation of scientists from 14 countries, showed that the average life expectancy for all genders after puberty is constant, and that the rate of aging cannot be slowed due to biological restrictions.
José Manuel Oporto of the Leverholm Center for Demographic Sciences in Oxford said the study compared centuries of human birth and death data and found that the overall pattern of mortality was the same, indicating that biological factors, not environmental factors, ultimately controlled longevity.
Oporto pointed out that the analysis of the data revealed the same general pattern of mortality. The high risk of death in children decreases rapidly in the teenage years, remains low until early adulthood, and then rises continuously with age.
"Our findings confirm that life expectancy in ancient humans was low because many people died at an early age, but with continued medical, social and environmental improvements, life expectancy has increased, but the path towards death in old age has not changed and so far developments have not been able to medical overcoming these biological limitations.