This is one hell of an article: "Dr Saul Newman has uncovered the “secret” to living to 110" (Spoiler: it's 'poor record-keeping') https://science.anu.edu.au/news-events/news/dr-saul-newman-has-uncovered-secret-living-110 Money quote: "Dr Newman’s research was supported by a 2010 Japanese government review which found 82 percent of people over 100 years old in Japan were actually already dead – including the country’s oldest man, whose corpse had been hidden by his daughter while she pocketed his pension for 30 years."