Scientists have discovered there is a clear connection between population growth and DNA mutations that cause a series of well known, deadly disease we are faced with today.
Taking into consideration the current statistics such as world population, life expectancy, birth control and birth demographics, the world’s population is expected to double every 35 years. What does that mean for human evolution? Rapid growth influences the human genome and increases the number of mutations in the DNA.
What are DNA mutations?
The expression DNA mutation refers to a change in the sequence of genes that can also alter the amino acid sequence. However, not every type of DNA gene mutation is a potential health hazard, as a matter of fact, mutations happen all the time, from parent to child, from a sibling to another, they are what makes us different. However, once in a while an abnormal mutation appears in the DNA sequence, and this mutations are known to cause several dangerous, potentially deadly conditions. What is worse, they can be inherited from parents to children.
Genetic or DNA Mutation Diseases.
Heart Disease: Mutations in the mitochondrial DNA have been suspected to cause an increase in the predisposition towards heart disease. A mutation of the mitochondria that is responsible with producing energy means the body produces energy less effectively, thus becoming responsible for several heart and muscle conditions.
Ovarian or Breast Cancer: In the past 20 years heavy research has been conducted to discover the exact genetic mutation that favor the development of cancerous cells in the breasts and ovaries. A gene named BRCA1 has been discovered to affect the odds of being prone to breast cancer when mutations occur. Similarly, the gene BRCA2 seems to have the same effects. Furthermore, this two genes seem to also increase the risk of ovarian, colon or prostate cancer.
Alzheimer: It’s a well known fact that the Alzheimer disease is mostly genetic, with even one single case of Alzheimer in the family increasing the overall risk of all family members developing it later on. Unlike other conditions where a single or a couple of mutated genes become responsible for the development of certain conditions, with Alzheimer a series of mutated genes are at work. Among the identified risk factor genes scientists include APP and presenillin 1 and 2.
DNA mutations cannot be undone, or cured, they can however be taken into consideration so that with the proper lifestyle choices, people can reduce the risk of disease early on. For example, if there is a history of heart disease in the family, a proper diet and daily exercise routine can prevent problems appearing later on.