The average lifespan after retirement varies depending on various factors such as individual health, lifestyle choices, and access to healthcare. On average, people are living longer than in previous generations due to advancements in medicine and healthcare, as well as improvements in living conditions and lifestyle choices. According to data from the U.S. Social Security Administration, a man reaching the retirement age of 65 today can expect to live, on average, until about age 84, while a woman turning 65 can expect to live, on average, until about age 86. However, these are just averages, and while statistically significant, many individuals live well beyond these ages. It's essential to plan for a potentially long retirement by ensuring financial security and maintaining a healthy lifestyle into older ages.