What is the maximum life span of humans according to research?

Research indicates that the maximum lifespan of humans is approximately 120 years. This figure is derived from studies tracking the oldest verified age of individuals, with the record held by Jeanne Calment, who lived to be 122 years old. Although advancements in healthcare and living conditions have enabled many individuals to live longer, the concept of maximum lifespan refers to the upper limit of human life, as opposed to average life expectancy which varies significantly across populations and time periods.

Options suggesting an age lower than 120 years reflect the average life expectancy rather than the biological limit for longevity, which is grounded in genetic and environmental factors influencing aging. The figure of 150 years is currently viewed as beyond realistic biological limits based on existing research and understanding of the aging process.