289 E. S. Ford et al., “Low-risk lifestyle behaviors and all-cause mortality: findings from the National Health and Nutrition Examination Survey III Mortality Study.” American Journal of Public Health 101, no. 10 (October 2011): 1922–29.

290 S. Yusuf et al., “Effect of potentially modifiable risk factors associated with myocardial infarction in 52 countries (the INTERHEART study): case-control study.” Lancet 364, no. 9438 (January): 937–52.

291 S. E. Chiuve et al., “Adherence to a low-risk, healthy lifestyle and risk of sudden cardiac death among women.” JAMA 306, no. 1 (July 2011): 62–69.

292 A. M. Herskind et al., “The heritability of human longevity: a population-based study of 2872 Danish twin pairs born 1870–1900.” Human Genetics 97, no. 3 (March 1996): 319–23.

293 S. Moalem, Het nut van ziekte (De Bezige Bij, 2007).

294 N. Barzilai et al., “The rationale for delaying aging and the prevention of age-related diseases.” Rambam Maimonides Medical Journal 3, no. 4 (October 2012): e0020.

295 L. A. Gavrilov et al., “Demographic consequences of defeating aging.” Rejuvenation Research 13, no. 2–3 (January): 329–34.

296 T. Parker-Pope, “For a healthy retirement, keep working.” The New York Times, October 19, 2009.

297 “Health and retirement study.” University of Michigan, hrsonline.isr.umich.edu.

298 C. Dufouil et al., “Older age at retirement is associated with decreased risk of dementia.” European Journal of Epidemiology 29, no. 5 (May 2014): 353–61.