A number of air pollutants are potent causes of cancer and contain oxidants that accelerate aging. Excessive alcohol is toxic. Viruses such as HIV and others that are transmitted by risky behavior not only cause AIDS but also various cancers including lymphoma. The association between sun exposure and accelerated skin aging is clear. Extended family cohesiveness and frequent contact is a notable feature of centenarian families.
Centenarians shed emotional stress exceptionally well.
Obesity is associated with inefficient energy production. Genetics plays a significant role in the ability to achieve extreme old age. Vitamin E is thus far the best scientifically proven antioxidant available either in the diet or as a dietary supplement. Exercise has been linked to lower rates of breast and prostate cancer. Keeping gut transit time under 20 hours seems to decrease the incidence of colon cancer.