* In a study on the hearts and brains of 8 non-primate species of mammals, a direct correlation was found between the maximum longevity of the organism and the oxidative damage to mitochondrial DNA (mtDNA).
* A study of the pigeon and several species of mammals pointed towards a linear relationship between maximum longevity and oxidative damage to protein.
* By over expressing human catalase in transgenic mice and targeting it to mitochondria, the maximum life span of subject mice has been extended by approximately 20%.
For more aging facts and details about why exactly humans age, see the below link:
