Recent research shows that larger dog breeds age faster than smaller breeds. This is because in large dogs, the changes in DNA associated with aging occur more quickly. These changes affect genes that are important for cell health, among other things.
A notable cause is so-called transposable elements. These are pieces of DNA that once came from viruses and can move within the genome. When these elements become active, they can cause damage to the DNA. This triggers inflammatory reactions, which accelerates the aging process.
The findings of this study help to better understand why large dogs have a shorter lifespan. Moreover, they provide new insights into the mechanism of aging in mammals, including humans. Inflammation resulting from such DNA damage plays a central role in the development of age-related diseases.
For people interested in healthy aging, this emphasizes how important it is to limit inflammation as much as possible. The research shows that aging is not only caused by time, but also by complex processes at the cellular level.
Source: Reason
