TY - JOUR T1 - A possible epigenetic explanation for the relationship between physical activity and exceptional health among older women AU - Ross C Y1 - 2010/06/28 N1 - 10.1001/archinternmed.2010.192 JO - Archives of Internal Medicine SP - 1081 EP - 1083 VL - 170 IS - 12 N2 - The epigenetic drift theory of aging holds that epimutations that develop over the course of a lifetime, resulting in the deterioration of the epigenome, contribute to the degenerative diseases of aging.2- 3 For example, epigenetic drift leading to hypomethylation of repeat elements and the hypermethylation of the promoters of tumor-suppressor genes is believed to play a role in cancer. Epigenetic mechanisms have also been proposed as a factor in Alzheimer disease, type 2 diabetes mellitus, atherosclerosis, and osteoarthritis.3 SN - 0003-9926 M3 - doi: 10.1001/archinternmed.2010.192 UR - http://dx.doi.org/10.1001/archinternmed.2010.192 ER -